 METHOD FOR PREPARING A CATHOD
专利摘要:
A method for preparing a cathode electrode based on a fluid aqueous paste is provided herein. The present invention provides a cathode slurry comprising a cathode active material, especially a high ni ternary cathode active material with improved water stability. The active cathode material shows lower tendencies to ph change when applied to the aqueous slurry. lower processing temperatures may prevent undesirable decomposition of cathode active material which is high in nickel and / or manganese. Additionally, batteries having electrodes prepared by the method described herein show impressive energy retention. 公开号:BR112018014186B1 申请号:R112018014186-0 申请日:2018-01-05 公开日:2019-09-17 发明作者:Kam Piu HO；Ranshi WANG；Peihua SHEN 申请人:Grst International Limited； IPC主号:
专利说明:
“METHOD FOR THE PREPARATION OF A CATHODE” FIELD OF THE INVENTION [001] The present invention relates to the battery field. In particular, the present invention relates to methods for preparing cathode for lithium-ion batteries. BACKGROUND OF THE INVENTION [002] In the past decades, lithium-ion batteries (LIBs) have been widely used in various applications especially consumer electronic products for their superior energy density, long cycle life and discharge capacity. Due to the rapid development of the electric vehicle (EV) and distribution network energy storage market, high-performance, low-cost LIBs are currently offering one of the most promising options for large-scale energy storage devices. [003] The use of multi-element lithium transition metal oxide such as lithium nickel manganese cobalt oxide (NMC) and lithium nickel cobalt aluminum oxide (NCA) has become popular due to its superior electrochemical properties compared to material traditional cathode assets such as LiMnCE, LiCoCE and LiNiCE. The high nickel cathode active material exhibits a high energy density and superior capacity property. [004] Currently, a cathode slurry can be prepared by dispersing an active cathode material, binding material and conducting agent in an organic solvent such as N-methyl-2-pyrrolidone (NMP). The cathode slurry is then coated in a current collector and dried to prepare a cathode. [005] The use of aqueous solutions instead of organic solvents is preferred for environmental and handling reasons and, therefore, water-based pastes have been considered. However, the active cathode material Petition 870190074557, of 8/2/2019, p. 6/75 2/65 high nickel is sensitive to exposure to water. Upon exposure to water, the lithium on the surface of the active cathode material reacts with water and, through this, results in the formation of soluble bases. The high content of soluble base will affect the pH of the cathode slurry. However, pH values outside certain ranges can affect the homogeneity of dispersion of components (eg active cathode material) in the cathode slurry and bond strength of the bonding material and can also have negative effects on the metal components of the electrode (for example, the metal collector). All of these factors contribute to poor electrochemical performance. Conventionally, the pH modifier is used to adjust the pH of the cathode slurry. However, additives can also have a deleterious effect on the electrochemical processes that occur at the cathode, especially at higher voltages and high temperatures, which, in turn, reduce battery performance. Consequently, it is desirable to adjust a pH of the cathode slurry without adding any additives. [006] Patent application n-CN 105762353 A discloses a method for preparing a lithium-ion battery that has high nickel ternary cathode material. The method comprises mixing a high nickel ternary cathode material with a conductive agent in a mixer to obtain a mixture; add a binder and water to the mixture by mixing; add more water to the mixture until it reaches a certain viscosity. However, the cycle life of batteries prepared by this method is less than 360 cycles in terms of 20% loss of their initial capacity, which is insufficient for many target applications such as portable electronics and electric vehicles. [007] Patent application No. 2 CN 105261753 A discloses an aqueous cathode slurry and a method for preparing them. The aqueous cathode slurry comprises an active cathode material (25% to 35%), a carbon nanotube (12% to 20%), a conductive agent (6% to 10%), a Petition 870190074557, of 8/2/2019, p. 7/75 3/65 aqueous binder (4% to 6%) and water (40% to 50%). The method comprises mixing a binder with water to obtain a pre-mixed solution; add a carbon nanotube and conductive agent to the premixed solution to obtain a conductive gel solution; grind the conductive gel solution until the ground material has a fineness of 5 pm to 10 pm; add an active cathode material and more water to the ground gel solution by mixing; vacuum pump the slurry; let the slurry rest for a while to obtain an aqueous cathode slurry. However, there is no data to evaluate the electrochemical performance of a battery through the use of ternary transition metal oxide as an active cathode material. [008] In view of the above, there is always a need to develop a method for preparing cathode slurries that have high nickel cathode active material for lithium ion batteries with good electrochemical performance through the use of a simple, easy and ecological method. SUMMARY OF THE INVENTION [009] The aforementioned needs are satisfied by several aspects and modalities described in this document. [0010] In one aspect, a method for preparing a cathode for a secondary battery is provided in this document, which comprises the steps of: 1) dispersing a binding material and conducting agent in an aqueous solvent to form a first suspension; 2) cool the first suspension to a temperature below or equal to about 15 ° C; 3) adding an active cathode material to the first suspension to form a second suspension; 4) homogenize the second suspension through a homogenizer at a temperature below or equal to about 15 ° C for Petition 870190074557, of 8/2/2019, p. 8/75 4/65 obtain a homogenized slurry; 5) apply the homogenized slurry to a current collector to form a coated film on the current collector; and 6) drying the coated film in the current collector at a temperature of about 35 ° C to about 65 ° C to form the cathode, in which the aqueous solvent is water; wherein the pH of the homogenized slurry is about 7 to about 11.6; and wherein the coated film on the current collector is dried for a period of time of less than 5 minutes. [0011] In some embodiments, the bonding material is selected from the group consisting of styrene-butadiene rubber, carboxymethylcellulose, polyvinylidene fluoride, acrylonitrile copolymer, polyacrylic acid, polyacrylonitrile, poly (vinylidene fluoride) hexafluoropropene, LA132 , LA133, latex, an alginic acid salt and combinations thereof. In certain embodiments, the alginic acid salt comprises a cation selected from the group consisting of Na, Li, K, Ca, NH4, Mg, Al and combinations thereof. [0012] In certain embodiments, the conductive agent is selected from the group consisting of carbon, carbon black, graphite, expanded graphite, graphene, graphene nanoplatelets, carbon fibers, carbon nanofibers, graphite carbon flake, tubes carbon, carbon nanotubes, activated carbon, mesoporous carbon and combinations thereof. [0013] In some embodiments, the aqueous solvent which further comprises ethanol, isopropanaol, methanol, acetone, n-propanol, t-butanol, nbutanol, dimethyl ketone, methyl ethyl ketone, ethyl acetate, isopropyl acetate, acetate propylene and combinations thereof. [0014] In certain embodiments, the active cathode material is selected from the group consisting of Lii + x Ni a MnbCo c Al (i_a-bc) O2, LiNio, 33Mno, 33Coo, 330 2 , LiNiogMnogCoo ^ CE, LiNio , sMno, 3Coo, 202, Petition 870190074557, of 8/2/2019, p. 9/75 5/65 LiNio, óMno, 2Coo, 202, LiNiojMnojsCoogsCh, LiNio, yMno, iCoo, i02, LiNio, 92Mno, 4 Coo, o402, LiNio ^ CoojsAlcmsCh, L1COO2, LÍN1O2, LiMnCE, LiMn2O4, Li2M11O3 and combinations thereof; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l. In some embodiments, the active cathode material is selected from the group consisting of LiNio, sMno, 3Coo, 202, LiNio, óMno, 2Coo, 202, LiNiojMnojsCoojsCh, LiNio, 8Mno, iCoo, i02, LiNio, 92Mno, o4Coo, o402, LiNio, 8Co 0 , i 5 Alo, 05 02, LÍN1O2 and combinations thereof. In other embodiments, the active cathode material comprises or is a core and shell composite that has a core and shell structure, wherein the core and shell each independently comprise a lithium transition metal oxide selected from from the group consisting of Lii + x Ni to MnbCo c Al (i_a-bc) O2, L1COO2, LÍN1O2, LiMnCE, LiMn2O4, Li2MnO3, LiCrCE, LÍ4T15O12, L1V2O5, LÍT1S2, L1M0S2 and the same combinations; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l. [0015] In some embodiments, the second suspension is homogenized by a planetary stirring mixer, a stirring mixer, a mixer or an ultrasonic mixer. In some embodiments, the second suspension is homogenized for a period of about 0.5 hour to about 8 hours. In certain embodiments, the second suspension is homogenized for a period of less than 8 hours. [0016] In certain embodiments, the method further comprises a step of degassing the second suspension under vacuum at a pressure of about 0.5 kPa to about 10 kPa for a period of about 2 minutes at about 5 minutes. [0017] In some embodiments, the viscosity of the homogenized slurry is from about 1,000 mPa-s to about 6,000 mPa-s. In certain embodiments, the solid content of the homogenized slurry is about 30% to about 60% by weight, based on the total weight of the homogenized slurry. Petition 870190074557, of 8/2/2019, p. 10/75 6/65 [0018] In certain embodiments, the homogenized slurry is applied to the current collector through the use of a scraper blade coater, a grooved die coater, a transfer coater or a spray coater. In some embodiments, the total processing time for steps 5) and 6) is less than 5 minutes. [0019] In some embodiments, the homogenized slurry is free of a dispersing agent, in which the dispersing agent is a cationic surfactant, an anionic surfactant, a nonionic surfactant, an amphoteric surfactant or a polymeric acid. [0020] In certain embodiments, the total processing time for steps 3) to 6) is about 2 hours to about 8 hours. In some embodiments, the total processing time for steps 3) to 6) is less than 5 hours. BRIEF DESCRIPTION OF THE DRAWINGS [0021] Figure 1 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 1. [0022] Figure 2 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 2. [0023] Figure 3 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 3. [0024] Figure 4 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 4. [0025] Figure 5 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 5. [0026] Figure 6 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 6. [0027] Figure 7 illustrates the cycling performance of an electrochemical cell prepared using the method described in Example 7. [0028] Figure 8 illustrates the cycling performance of a cell Petition 870190074557, of 8/2/2019, p. 11/75 7/65 electrochemistry prepared using the method described in Example 8. [0029] Figure 9 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 1. [0030] Figure 10 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 2. [0031] Figure 11 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 3. [0032] Figure 12 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 4. [0033] Figure 13 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 5. [0034] Figure 14 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 6. [0035] Figure 15 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 7. [0036] Figure 16 illustrates the cycling performance of an electrochemical cell prepared using the method described in the Comparative Example 8. [0037] Figure 17 illustrates an image of the surface of the aluminum current collector of Example 2. [0038] Figure 18 illustrates an image of the surface of the aluminum current collector of Comparative Example 2. Petition 870190074557, of 8/2/2019, p. 12/75 8/65 DETAILED DESCRIPTION OF THE INVENTION [0039] A method for preparing a cathode for a secondary battery is provided herein, the method comprising the steps of: 1) dispersing a binding material and conducting agent in an aqueous solvent to form a first suspension; 2) cool the first suspension to a temperature below or equal to about 15 ° C; 3) adding an active cathode material to the first suspension to form a second suspension; 4) homogenize the second suspension through a homogenizer at a temperature below or equal to about 15 ° C to obtain a homogenized slurry; 5) apply the homogenized slurry to a current collector to form a coated film on the current collector; and 6) drying the coated film in the current collector at a temperature of about 35 ° C to about 65 ° C to form the cathode, in which the aqueous solvent is water; wherein the pH of the homogenized slurry is about 7 to about 11.6; and wherein the coated film on the current collector is dried for a period of time of less than 5 minutes. [0040] The term "electrode" refers to a "cathode" or an "anode." [0041] The term "positive electrode" is used interchangeably with the cathode. Likewise, the term “negative electrode” is used interchangeably with the anode. [0042] The term "bonding material" refers to a chemical or substance that can be used to retain the electrode material and the conductive agent in their locations. [0043] The term “conducting agent” refers to a material that is Petition 870190074557, of 8/2/2019, p. 13/75 9/65 chemically inactive and has good electrical conductivity. Therefore, the conductive agent is often mixed with an active electrode material at the time of forming an electrode to improve the electrode's electrical conductivity. [0044] The term "homogenizer" refers to equipment that can be used for the homogenization of materials. The term "homogenization" refers to a process of reducing a substance or material into small particles and distributing it evenly throughout an entire fluid. Any conventional homogenizers can be used for the method described in this document. Some non-limiting examples of the homogenizer include stirring mixers, planetary stirring mixers, mixers and ultrasonic mixers. [0045] The term “planetary mixer” refers to equipment that can be used to mix or stir different materials to produce a homogeneous mixture, which consists of moving blades in planetary motion within a vessel. In some embodiments, the planetary mixer comprises at least one planetary blade and at least one high speed dispersion blade. The planetary and high-speed dispersion blades rotate on their own geometric axes and also rotate continuously around the vessel. The speed of rotation can be expressed in the unit of revolutions per minute (rpm) which refers to the number of revolutions that a rotating body completes in one minute. [0046] The term "ultrasonic cleaner" refers to equipment that can apply ultrasonic energy to agitate particles in a sample. Any ultrasound device that can disperse the slurry described in this document can be used in this document. Some non-limiting examples of the ultrasonic cleaner include an ultrasonic bath, a probe-type ultrasonic cleaner and an ultrasonic flow cell. Petition 870190074557, of 8/2/2019, p. 14/75 10/65 [0047] The term “ultrasonic bath” refers to a device through which ultrasonic energy is transmitted through the wall of the ultrasonic bath container to a liquid sample. [0048] The term "probe-type ultrasound" refers to an ultrasonic probe immersed in a medium for direct sonication. The term "direct sonication" means that the ultrasound is directly coupled to the processing liquid. [0049] The term "ultrasonic flow cell" or "ultrasonic reactor chamber" refers to a device through which the sonication processes can be performed in a through-flow mode. In some embodiments, the ultrasonic flow cell is in a single pass, multiple pass or recirculation configuration. [0050] The term "apply" refers to the act of placing or spreading a substance on a surface. [0051] The term "current collector" refers to a support for the coating of the active electrode material and a chemically inactive high electron conductor to keep an electric current flowing to the electrodes during the discharge or charging of a secondary battery . [0052] The term "scraper blades" refers to a process for the manufacture of large area films on rigid or flexible substrates. A coating thickness can be controlled by an adjustable gap width between a coating sheet and a coating surface, which allows the deposition of varying wet layer thicknesses. [0053] The term "transfer coating" or "cylinder coating" refers to a process for the manufacture of large area films on rigid or flexible substrates. A slurry is applied to the substrate by transferring a coating to the surface of a pressure coating cylinder. A coating thickness can be controlled Petition 870190074557, of 8/2/2019, p. 15/75 11/65 by an adjustable span width between a measuring blade and a surface of the coating cylinder, which allows for the deposition of varying wet layer thicknesses. In a measuring cylinder system, the coating thickness is controlled by adjusting the gap between a measuring cylinder and a coating cylinder. [0054] The term "room temperature" refers to the closed room temperatures of about 18 ° C to about 30 ° C, for example, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 or 30 ° C. In some embodiments, room temperature refers to a temperature of about 20 ° C +/- 1 ° C or +/- 2 ° C or +/- 3 ° C. In other embodiments, room temperature refers to a temperature of about 22 ° C or about 25 ° C. [0055] The term "solid content" refers to the amount of non-volatile material remaining after evaporation. [0056] The term "C rate" refers to the rate of charging or discharging a cell or battery, expressed in terms of its total storage capacity in Ah or mAh. For example, a rate of 1 C means using all the energy stored in an hour; 0.1 C means the use of 10% of energy in an hour or all energy in 10 hours; and 5 C means the use of all energy in 12 minutes. [0057] The term "ampere-hour (Ah)" refers to a unit used in specifying the storage capacity of a battery. For example, a battery with 1 Ah capacity can supply a current of one amp for one hour or 0.5 A for two hours, etc. Therefore, 1 Ampere-hour (Ah) is the equivalent of 3,600 coulombs of electrical charge. Similarly, the term “milliamp-hour (mAh)” also refers to a unit of the storage capacity of a battery and is 1 / 1,000 of an ampere-hour. [0058] The term “battery cycle life” refers to the number of complete charge / discharge cycles that a battery can perform before its nominal capacity drops below 80% of its initial capacity Petition 870190074557, of 8/2/2019, p. 16/75 12/65 calculated. [0059] The term "main component" of a composition refers to the component that is more than 50%, more than 55%, more than 60%, more than 65%, more than 70%, more than than 75%, more than 80%, more than 85%, more than 90% or more than 95% by weight or volume, based on the total weight or volume of the composition. [0060] The term "secondary component" of a composition refers to the component that is less than 50%, less than 45%, less than 40%, less than 35%, less than 30%, less than than 25%, less than 20%, less than 15%, less than 10% or less than 5% by weight or volume, based on the total weight or volume of the composition. [0061] In the following description, all numerals described in this document are approximate values, regardless of whether the term "about" or "approximate" is used in connection with them. They can vary by 1 percent, 2 percent, 5 percent, or sometimes 10 to 20 percent. If a numerical range with a lower limit, R L and an upper limit, R u , is described, any numerals that fall within the range are specifically described. In particular, the following numerals within the range are specifically described: R = R l + k (RR l ), where k is a variable that ranges from 1 percent to 100 percent with a 1 percent increment, that is , k is 1 percent, 2 percent, 3 percent, 4 percent, 5 percent, ..., 50 percent, 51 percent, 52 percent, ..., 95 percent, 96 percent , 97 percent, 98 percent, 99 percent, or 100 percent. In addition, any numerical range defined by two R numerals as defined above is also specifically described. [0062] Generally, lithium-ion battery electrodes are manufactured by melting an organic-based slurry into a metal current collector. The slurry contains active electrode material, conductive carbon and binder in an organic solvent, most commonly N-Methyl-2 Petition 870190074557, of 8/2/2019, p. 17/75 13/65 pyrrolidone (NMP). The binder, most commonly polyvinylidene fluoride (PVDF), is dissolved in the solvent and conductive additives as well as in the active electrode material are suspended in the slurry. PVDF provides good electrochemical stability and high adhesion to electrode materials and current collectors. However, PVDF can only dissolve in some specific organic solvents such as N-Methyl-2-pyrrolidone (NMP) which is flammable and toxic and thus requires specific handling. [0063] An NMP recovery system must be in place during the drying process to recover the NMP vapors. This will generate significant costs in the manufacturing process as it requires a large capital investment. The use of less expensive and more environmentally friendly solvents, such as aqueous based solvents is preferred, as it could eliminate the large capital cost of the recovery system. Attempts to replace the organic NMP-based coating process with a water-based coating process have been successful for the negative electrode. A typical water-based anode coating fluid comprising carboxymethylcellulose (CMC) and styrene-butadiene rubber (SBR). Inside the battery, cathodes are in high voltage. Most rubbers including SBR are only stable at low anode voltage and will decompose at high voltage. Therefore, contrary to anodes, water-based coating for cathodes is much more difficult. [0064] Another concern with the use of water based cathode coating is that many active cathode materials are not inert in water. Lithium located close to the surface is reactive. If the slurry contains water as a solvent, then the reactive lithium will react with water, forming some inorganic surface compounds such as L12CO3 and LiOH. Since the active cathode materials containing these surface compounds are immersed in water, surface compounds containing Li such as L12CO3 and LiOH dissolve and generate an increase in pH. Additionally Li near the Petition 870190074557, of 8/2/2019, p. 18/75 14/65 surface can dissolve through a Li + - H + ion exchange reaction. Lithium can also diffuse from the total to the surface, creating cationic gaps in the total. [0065] This phenomenon will become more apparent when using high-nickel cathode active materials. This will affect the electrochemical properties of the active cathode materials, introducing adverse effects on battery performance. Therefore, the conventional method of fabricating an electrode, especially cathode with high nickel cathode active material, uses an anhydrous organic solvent to prepare a slurry. Manufacturing processes are generally carried out in dry environments where the humidity of the environment is carefully controlled. [0066] The present invention can provide a lithium ion battery slurry based on cathode water comprising an active cathode material such as lithium transition metal oxide. In some embodiments, a bonding material and conductive agent are dispersed in an aqueous solvent to form a first suspension. In other embodiments, a first suspension is prepared by sequentially adding a binding material and conducting agent to an aqueous solvent. [0067] In some embodiments, the bonding material is selected from the group consisting of styrene-butadiene rubber (SBR), carboxymethylcellulose (CMC), polyvinylidene fluoride (PVDF), acrylonitrile copolymer, polyacrylic acid (PAA) , polyacrylonitrile, poly (vinylidene fluoride) -hexafluoropropene (PVDF-HFP), LA132, LA133, latex, an alginic acid salt and combinations thereof. In certain embodiments, the alginic acid salt which comprises a cation selected from Na, Li, K, Ca, NH4, Mg, Al or a combination thereof. [0068] In certain embodiments, the bonding material is selected from SBR, CMC, PAA, LA132, LA133, an alginic acid salt or a combination thereof. In certain embodiments, the connection material is Petition 870190074557, of 8/2/2019, p. 19/75 15/65 acrylonitrile copolymer. In some embodiments, the bonding material is polyacrylonitrile. In certain embodiments, the bonding material is free of styrene-butadiene rubber, carboxymethylcellulose, polyvinylidene fluoride, acrylonitrile copolymer, polyacrylic acid, polyacrylonitrile, poly (vinylidene fluoride) -hexafluoropropene, latex, LA132, LA133 or a salt133 or LA133 alginic acid. In certain embodiments, the bonding material is not a fluorine-containing polymer such as PVDF, PVDF-HFP or PTFE. [0069] In some embodiments, the conductive agent is selected from the group consisting of carbon, carbon black, graphite, expanded graphite, graphene, graphene nanoplatelets, carbon fibers, carbon nanofibers, graphite carbon flake, tubes carbon, carbon nanotubes, activated carbon, mesoporous carbon and combinations thereof. In certain embodiments, the conducting agent is not carbon, carbon black, graphite, expanded graphite, graphene, graphene nanoplets, carbon fibers, carbon nanofibers, graphite carbon flake, carbon tubes, carbon nanotubes, activated carbon or mesoporous carbon. [0070] In certain embodiments, aqueous solutions are a solution containing water as the main component and a volatile solvent, such as alcohols, lower aliphatic ketones, lower alkyl acetates or similar, as the secondary component in addition to water. In certain embodiments, the amount of water is at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90% or at least 95% of the total amount of water and solvents other than water. In some modalities, the amount of water is a majority of 55%, a majority 60%, a majority 65%, a majority 70%, a majority 75%, a majority 80%, a majority 85 %, a majority 90% or a majority 95% in relation to the total amount of water and solvents other than water. In some embodiments, aqueous solutions consist only of water, that is, the Petition 870190074557, of 8/2/2019, p. 20/75 16/65 proportion of water in aqueous solutions is 100% by volume. [0071] Any water-miscible solvents can be used as the secondary component. Some non-limiting examples of the secondary component (i.e., solvents other than water) include alcohols, lower aliphatic ketones, lower alkyl acetates and combinations thereof. Some non-limiting examples of alcohol include C1-C4 alcohols, such as methanol, ethanol, isopropanol, n-propanol, butanol and combinations thereof. Some non-limiting examples of lower aliphatic ketones include acetone, dimethyl ketone and methyl ethyl ketone. Some non-limiting examples of lower alkyl acetates include ethyl acetate, isopropyl acetate and propyl acetate. [0072] In some embodiments, aqueous solutions are a mixture of water and one or more water-miscible secondary components. In certain embodiments, the aqueous solutions are a mixture of water and a secondary component selected from methanol, ethanol, isopropanol, n-propanol, tbutanol, n-butanol and combinations thereof. In some embodiments, the water volume and secondary component ratio is from about 51:49 to about 100: 1. [0073] In certain embodiments, the aqueous solutions are water. Some non-limiting examples of water include tap water, bottled water, purified water, pure water, distilled water, deionized water, D2O or a combination thereof. In some embodiments, the aqueous solutions are deionized water. In certain embodiments, the aqueous solutions are free of alcohol, aliphatic ketone, alkyl acetate or a combination thereof. [0074] In certain embodiments, the amount of each of the bonding material and the conductive material in the first suspension is independently from about 1% to about 25%, from about 1% to about 15%, from about from 1% to about 10%, from about 1% to about 5%, from about 3% to about 20%, from about 5% to about 20%, from about 5% to about Petition 870190074557, of 8/2/2019, p. 21/75 17/65 10%, about 10% to about 20%, about 10% to about 15% or about 15% to about 20% by weight, based on the total weight of the first suspension . In some embodiments, the amount of each of the bonding material and the conductive material in the first suspension is independently less than 20%, less than 15%, less than 10%, less than 8% or less than 6% by weight, based on the total weight of the first suspension. [0075] In some embodiments, the solid content of the first suspension is about 10% to about 30%, about 10% to about 25%, about 10% to about 20% or about from 10% to about 15% by weight, based on the total weight of the first suspension. In certain embodiments, the solid content of the first suspension is about 10%, about 15%, about 20%, about 25% or about 30% by weight, based on the total weight of the first suspension. In certain embodiments, the solid content of the first suspension is less than 20%, less than 15% or less than 10% by weight, based on the total weight of the first suspension. [0076] During the water based coating, the active cathode material is exposed to water. Cycling performance of lithium-ion batteries X is dominated by the surface properties of the active cathode material. Water can damage the surface of the active cathode material, thus causing poor cycling performance. [0077] Additionally, when ternary cathode active material such NMC is immersed in water, a certain amount of Li will be subjected to ion exchange for protons. Dissolved Li causes an increase in the pH of the water. As the Ni: Mn ratio in NMC increases, the cathode capacity increases. However, as the Ni: Mn ratio increases, the amount of Li available for ion exchange increases dramatically, resulting in an increased pH value. Therefore, it would be very difficult to apply water-based electrode coatings to active cathode materials with high Ni. Petition 870190074557, of 8/2/2019, p. 22/75 18/65 [0078] This alkaline pH can also result in the degradation of the current collector (for example, corrosion and / or dissolution). The high pH of the water-based slurry can cause severe corrosion to the aluminum foil current collector since Al foil is not resistant to corrosive attack by alkaline solutions that have a high pH. Collector degradation can generate the addition of undesirable impurities to the slurry and consequently reduce the performance of the positive electrode. [0079] Several strategies are proposed to solve the problems, for example, reducing the pH of the slurry by adding a buffer or a pH modifier such as an acid or protective coating of aluminum foil. However, the pH value will increase again after adding the acid since the slurry has not reached a stable situation. This phenomenon is typical for active ternary cathode materials such as NCA and NMC with a high Ni: Mn ratio. A major disadvantage of the protective coating is the relatively high cost of the coating. This is very difficult to do under conditions of mass production. [0080] Furthermore, the high pH of the slurry creates problems during coating as the binding affinity of the binder is affected by the pH. Delamination or separation of the cathode electrode layer from the current collector is harmful. These problems have been solved by the present invention. In some embodiments, the first suspension is cooled to a temperature of about -5 ° C to about 20 ° C before adding an active cathode material to the first suspension to form a second suspension and the second suspension is homogenized through a homogenizer at a temperature of about -5 ° C to about 20 ° C to obtain a homogenized slurry. [0081] It was surprisingly found that the temperature control of the first suspension and the homogenization treatment Petition 870190074557, of 8/2/2019, p. 23/75 19/65 can solve the problems mentioned above. The temperature control of the first suspension and the subsequent homogenization treatment can delay the reaction of the active cathode material with water and provides a simple method with the ability to prepare slurry based on stable water without the need to add any additives. [0082] In some embodiments, the first suspension is cooled to a temperature below room temperature. In certain embodiments, the first suspension is cooled to a temperature of about -5 ° C to about 25 ° C, from about -5 ° C to about 20 ° C, from about -5 ° C to about 15 ° C, about -5 ° C to about 10 ° C, about -5 ° C to about 5 ° C, about 5 ° C to about 0 ° C, about 0 ° About 25 ° C, about 0 ° C to about 20 ° C, about 0 ° C to about 15 ° C, about 0 ° C to about 10 ° C, about 5 ° C to about 20 ° C, from about 5 ° C to about 15 ° C, about 10 ° C to about 25 ° C or about 10 ° C to about 20 ° C. In some embodiments, the first suspension is cooled to a temperature less than or equal to about 25 ° C, less than or equal to about 20 ° C, less than or equal to about 15 ° C, less than than or equal to about 10 ° C, less than or equal to about 5 ° C or less than or equal to about 0 ° C. [0083] The method described in this document is particularly suitable for preparing a cathode using an active cathode material with a high nickel content. The high nickel cathode prepared by the method described in this document has improved electrochemical performance and long-term stability when operated and a stringent condition such as a high temperature environment. [0084] In some embodiments, the active cathode material is Lii + x NiaMnbCocAl (iabc) O 2 , LiNio, 33Mno, 33Coo, 3302 (NMC333), LiNiogMnogCoo ^ EC LiNicbsMnogCoo = CH (NMC532), LiNiO, 6MNO, 2Coo, 202 (NMC622), LiNiO, 7Mno, i5Coo, I502, LiNiO, 8Mno, Icoo, i02 (NMC811), LiNiO, 92Mno, 4 Coo o402 , LiNio, 8Coo, i5Alo, os02 (NCA), LiCoCE (LCO), LiNiCh Petition 870190074557, of 8/2/2019, p. 24/75 20/65 (LNO), LiMnCh, LiMmCU (LMO), Li2M11O3 and combinations thereof; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l. In certain embodiments, the active cathode material is selected from the group consisting of Lii + x Ni to MnbCo and Al (i_a-bc) O2; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l. In some embodiments, a is any number from about 0.33 to about 0.92, from about 0.33 to about 0.9, from about 0.33 to about 0.8, from about 0.5 to about 0.92, from about 0.5 to about 0.9, from about 0.5 to about 0.8, from about 0.6 to about 0.92 or from about 0.6 to about 0.9. In certain embodiments, each of b and c is independently any numeral from about 0 to about 0.5, from about 0 to about 0.3, from about 0.1 to about 0.5, from about 0.1 to about 0.4, about 0.1 to about 0.3, about 0.1 to about 0.2 or about 0.2 to about 0.5. [0085] In other modalities, the active cathode material is not L1COO2, LÍNÍO2, LiMnCE, LiMmCU or Li2MnO3. In additional embodiments, the active cathode material is not LiNio, 33Mno, 33Coo, 3302, LiNiogMno, 4 (200.2 () 2, LiNio, 5Mno, 3Coo, 202, LiNio, óMno, 2Coo, 202, LiNiojMnojsCoo.isCh, LiNio, 8Mno, iCoo, i02, LiNio, 92Mno, o4Coo, o402 or LiNio, 8Coo, i5Alo, os02 · [0086] In certain embodiments, the active cathode material comprises or is a core and shell composite that has a structure of core and shell, wherein the core and shell each independently comprise a lithium transition metal oxide selected from the group consisting of Lii + x Ni to MnbCo and Al (i_a-bc) O2, L1COO2, LÍN1O2, LiMnCE, LiMmCU, Li2MnO3, LiCrCE, LÍ4T15O12, LÍV2O5, LIT1S2, L1M0S2 and combinations thereof; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l In other embodiments, the core and shell each independently comprise two or more lithium transition metal oxides, the two or more lithium transition metal oxides in the core and the enclosure can r the same or may be different or partially different. In some embodiments, the two or more metal oxides of Petition 870190074557, of 8/2/2019, p. 25/75 21/65 lithium transition are evenly distributed over the core. In certain embodiments, the two or more lithium transition metal oxides are not evenly distributed over the core. In some embodiments, the active cathode material is not a core and shell composite. [0087] In some embodiments, the core diameter is from about 5 pm to about 45 pm, from about 5 pm to about 35 pm, from about 5 pm to about 25 pm, from about 10 pm at about 40 pm or from about 10 pm to about 35 pm. In certain embodiments, the thickness of the enclosure is from about 3 pm to about 15 pm, from about 15 pm to about 45 pm, from about 15 pm to about 30 pm, from about 15 pm to about 25 pm, from about 20 pm to about 30 pm, or from about 20 pm to about 35 pm. In certain embodiments, the diameter or thickness ratio of the core and shell are in the range of 15:85 to 85:15, 25:75 to 75:25, 30:70 to 70:30 or 40:60 to 60: 40. In certain embodiments, the volume or weight ratio of the core and casing is 95: 5, 90:10, 80:20, 70:30, 60:40, 50:50, 40:60 or 30:70. [0088] Before homogenizing the second suspension, the slurry is degassed at a reduced pressure for a short period of time to remove air bubbles trapped in the slurry. In some embodiments, the slurry is degassed at a pressure of about 1 kPa to about 10 kPa, about 1 kPa to about 5 kPa or about 1 kPa to about 3 kPa. In certain embodiments, the slurry is degassed at a pressure less than 10 kPa, less than 8 kPa, less than 6 kPa, less than 5 kPa or less than 1 kPa. In some embodiments, the slurry is degassed for a period of about 1 minute to about 5 minutes, about 2 minutes to about 5 minutes, about 3 minutes to about 5 minutes or about 4 minutes to about 5 minutes. In certain embodiments, the slurry is degassed for a period of time less than 5 minutes, less than 4.5 minutes, less than 4 minutes or less than 3.5 minutes. Petition 870190074557, of 8/2/2019, p. 26/75 22/65 [0089] The second suspension is homogenized through a homogenizer at a temperature of about -5 ° C to about 20 ° C to obtain a homogenized slurry. The homogenizer is equipped with a temperature control system in which the temperature of the second suspension can be controlled by the temperature control system. Any homogenizer that can reduce or eliminate particle aggregation, and / or promote the homogeneous distribution of slurry ingredients can be used in this document. Homogeneous distribution plays an important role in making batteries with good battery performance. In some embodiments, the homogenizer is a planetary stirring mixer, a stirring mixer, a mixer or an ultrasonic mixer. [0090] In certain embodiments, the second suspension can be homogenized at any temperature below room temperature to obtain a homogenized slurry. In some embodiments, the second suspension is homogenized at a temperature of about -5 ° C to about 25 ° C, from about -5 ° C to about 20 ° C, from about -5 ° C to about 15 ° C, about -5 ° C to about 10 ° C, about -5 ° C to about 5 ° C, about 5 ° C to about 0 ° C, about 0 ° About 25 ° C, about 0 ° C to about 20 ° C, about 0 ° C to about 15 ° C, about 0 ° C to about 10 ° C, about 5 ° C to about 25 ° C, about 5 ° C to about 20 ° C, about 5 ° C to about 15 ° C, about 10 ° C to about 25 ° C or about 10 ° C to about 20 ° C. In certain embodiments, the second suspension is homogenized at a temperature less than or equal to about 25 ° C, less than or equal to about 20 ° C, less than or equal to about 15 ° C, less than than or equal to about 10 ° C, less than or equal to about 5 ° C or less than or equal to about 0 ° C. Reducing the temperature of the second suspension during homogenization can limit the occurrence of unwanted reactions of the active cathode material with the aqueous solvent. [0091] In some embodiments, the planetary stirring mixer Petition 870190074557, of 8/2/2019, p. 27/75 23/65 comprises at least one planetary blade and at least one high speed dispersion blade. In certain embodiments, the rotational speed of the planetary blade is about 20 rpm to about 200 rpm and the rotational speed of the dispersion blade is about 1,000 rpm to about 3,500 rpm. In some embodiments, the rotational speed of the planetary blade is about 20 rpm to about 200 rpm, about 20 rpm to about 150 rpm, about 30 rpm to about 150 rpm, or about 50 rpm to about 100 rpm. The rotational speed of the spreader blade is about 1,000 rpm to about 4,000 rpm, from about 1,000 rpm to about 3,000 rpm, from about 1,000 rpm to about 2,000 rpm, from about 1,500 rpm to about 3,000 rpm or from about 1,500 rpm to about 2,500 rpm. [0092] In certain modalities, the ultrasound is an ultrasonic bath, a probe-type ultrasound device or an ultrasonic flow cell. In some embodiments, the ultrasound is operated at a power density of about 10 W / l to about 100 W / l, about 20 W / l to about 100 W / l, about 30 W / l to about 100 W / l, about 40 W / l to about 80 W / l, about 40 W / l to about 70 W / l, about 40 W / l to about 60 W / l, about 40 W / l to about 50 W / l, about 50 W / l to about 60 W / l, to about 20 W / l to about 80 W / l, to about 20 W / l to about 60 W / l or about 20 W / l to about 40 W / l. In certain embodiments, the ultrasound is operated at a power density of about 10 W / l, about 20 W / l, about 30 W / l, about 40 W / l, about 50 W / l, about 60 W / l, about 70 W / l, about 80 W / l, about 90 W / l or about 100 W / l. [0093] When the active cathode material is homogenized in an aqueous fluid slurry for a long period of time, water can damage the active cathode material even under low temperature agitation conditions. In some embodiments, the second suspension is homogenized for a period of time from about 0.5 hour to about 8 hours, from about Petition 870190074557, of 8/2/2019, p. 28/75 24/65 0.5 hour to about 6 hours, about 0.5 hour to about 5 hours, about 0.5 hour to about 4 hours, about 0.5 hour to about 3 hours, about 0.5 hour to about 2 hours, about 0.5 hour to about 1 hour, about 1 hour to about 8 hours, about 1 hour to about 6 hours, about 1 hour to about 4 hours, about 2 hours to about 8 hours, about 2 hours to about 6 hours or about 2 hours to about 4 hours. In certain embodiments, the second suspension is homogenized for a period of time less than 8 hours, less than 7 hours, less than 6 hours, less than 5 hours, less than 4 hours, less than 3 hours, less than 2 hours or less than 1 hour. In some embodiments, the second suspension is homogenized over a period of about 6 hours, about 5 hours, about 4 hours, about 3 hours, about 2 hours, about 1 hour or about 0.5 hour. [0094] When the pH value of the slurry varies during homogenization and is outside certain ranges, it can affect the dispersion homogeneity and particle size distribution of water-insoluble components, for example, active electrode material and conductive agent in the slurry, thus resulting in poor electrode performance. Consequently, it is desirable to maintain the pH of the slurry during homogenization. It is found that the pH value of the slurry can remain stable when homogenization is carried out at low temperature. The present invention provides active cathode materials, especially high Ni active ternary cathode material with improved water stability, showing lower trends for pH change when applied to the slurry. [0095] In some embodiments, the pH of the homogenized slurry is about 7 to about 12, about 7 to about 11.6, about 7 to about 11.5, about 7 to about 11, about 7 to about 10.5, about 7 to about 10, about 7 to about 9.5, about 7 to about Petition 870190074557, of 8/2/2019, p. 29/75 25/65 9, from about 7 to about 8.5, from about 7 to about 8, from about 7.5 to about 11, from about 7.5 to about 10.5, from about 7.5 to about 9 , 5, from about 8 to about 11.6, from about 8 to about 11, from about 8 to about 10.5, about 8 to about 10, about 8 to about 9, about 8.5 to about 11, about 8.5 to about 10.5, about 9 to about from 11.6, from about 9 to about 11, from about 9 to about 10.5, from about 9 to about 10, or from about 9.5 to about 11. In certain embodiments, the pH of the homogenized slurry is less than 12, less than 11.6, less than 11.5, less than 11, less than 10.5, less than 10, less than 9.5, less than 9, less than 8.5 or less than 8. In some embodiments, the pH of the homogenized slurry is about 7, about 7.5, about 8, about 8.5, about 9, about 9.5, about 10, about 10.5, about 11, about 11.5 or about 11.6. [0096] In certain embodiments, the amount of each of the bonding material and conductive agent in the homogenized slurry is independently from about 0.5% to about 10%, from about 0.5% to about 5%, from about 0.5% to about 3%, from about 1% to about 10%, from about 1% to about 8%, from about 1% to about 6%, about 1% to about 5%, about 2% to about 8% or about 2% to about 6% by weight, based on the total weight of the homogenized slurry. In some embodiments, the amount of each of the bonding material and conductive agent in the homogenized slurry is independently at least 0.5%, at least 1%, at least 2%, at least 3%, at least 4% at least 5% or at least 10% by weight, based on the total weight of the homogenized slurry. In certain embodiments, the amount of each of the bonding material and the conducting agent in the homogenized slurry is independently in a majority 1%, in a majority 2%, in a majority 3%, in a majority 4%, in a majority a majority 5% or a majority 10% by weight, based on the total weight of the homogenized slurry. Petition 870190074557, of 8/2/2019, p. 30/75 26/65 [0097] In some embodiments, the weight of the bonding material is greater than, less than or equal to the weight of the conductive agent in the homogenized slurry. In certain embodiments, the ratio of the weight of the bonding material to the weight of the conductive agent is from about 1: 10 to about 10: 1, from about 1: 10 to about 5: 1, from about 1:10 to about 1: 1, about 1:10 to about 1: 5, about 1: 5 to about 5: 1 or about 1: 2 to about 2: 1. [0098] In certain embodiments, the amount of the active cathode material in the homogenized slurry is at least 20%, at least 30%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55% or at least 60% by weight, based on the total weight of the homogenized slurry. In some embodiments, the amount of active cathode material in the homogenized slurry is a majority of 50%, a majority 55%, a majority 60%, a majority 65%, a majority 70%, a majority 75% or a majority 80% by weight, based on the total weight of the homogenized slurry. [0099] In some embodiments, the amount of the active cathode material in the homogenized slurry is from about 30% to about 70%, from about 30% to about 65%, from about 30% to about 60 %, about 30% to about 55%, about 30% to about 50%, about 40% to about 70%, about 40% to about 65%, about 40 % to about 60%, from about 40% to about 55%, from about 40% to about 50%, from about 50% to about 70% or from about 50% to about 60% by weight, based on the total weight of the homogenized slurry. In certain embodiments, the amount of the active cathode material in the homogenized slurry is about 30%, about 45%, about 50%, about 65% or about 70% by weight, based on the total weight of the paste homogenized fluid. [00100] In certain embodiments, the solid content of the homogenized slurry is about 30% to about 60%, about 30% to about 55%, about 30% to about 50%, about 40% to about 60% or Petition 870190074557, of 8/2/2019, p. 31/75 / 65 about 50% to about 60% by weight, based on the total weight of the homogenized slurry. In some embodiments, the solid content of the homogenized slurry is less than 70%, less than 65%, less than 60%, less than 55%, less than 50% or less than 45% by weight , based on the total weight of the homogenized slurry. In certain embodiments, the homogenized slurry solid content is about 30%, about 40%, about 50%, about 55% or about 60% by weight, based on the total weight of the homogenized slurry. [00101] The high viscosity of the slurry makes it difficult to disperse the bulk materials to obtain a uniform slurry. The solvent used in the homogenized slurry described herein can comprise at least one alcohol. The addition of alcohol can improve the processability of the slurry and decrease the freezing point of water. In some embodiments, the slurry does not comprise an alcohol. Some non-limiting examples of suitable alcohol include ethanol, isopropanol, n-propanol, tbutanol, n-butanol and combinations thereof. The total amount of alcohol can be in the range of about 10% to about 50%, from about 10% to about 35%, from about 20% to about 40%, from about 0% to about 15%, from about 0.001% to about 10%, from about 0.01% to about 8% or from about 0.1% to about 5% by weight, based on the total weight of the slurry homogenized. [00102] The viscosity of the homogenized slurry is preferably less than about 6,000 mPa-s. In some embodiments, the viscosity of the homogenized slurry is about 1,000 mPa · s to about 6,000 mPa · s, from about 1,000 mPa · s to about 5,000 mPa · s, from about 1,000 mPa-s to about 4,000 mPa-s, from about 1,000 mPa-s to about 3,000 mPa-s or from about 1,000 mPa-s to about 2,000 mPa-s. In certain embodiments, the viscosity of the homogenized slurry is less than 6,000 mPa-s, less than 5,000 mPa-s, less than 4,000 mPa-s, Petition 870190074557, of 8/2/2019, p. 32/75 28/65 less than 3,000 mPa-s or less than 2,000 mPa-s. In some embodiments, the viscosity of the homogenized slurry is about 1,000 mPa-s, about 2,000 mPa-s, about 3,000 mPa-s, about 4,000 mPa-s, about 5,000 mPa · s or about 6,000 mPa · s. Thus, the resulting slurry can be completely mixed or homogeneous. [00103] In conventional methods of preparing the cathode slurry, a dispersing agent can be used to assist in dispersing the active cathode material, the conductive agent and the binding material in the slurry. Some non-limiting examples of the dispersing agent include a polymeric acid and a surfactant that can decrease the surface tension between a liquid and a solid. In some embodiments, the dispersing agent is a non-ionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant or a combination thereof. [00104] One of the advantages of the present invention is that the slurry components can be dispersed homogeneously at temperatures below room temperature without the use of a dispersing agent. In some embodiments, the method of the present invention does not comprise a step of adding a dispersing agent to the first suspension, the second suspension or the homogenized slurry. In certain embodiments, the first suspension, the second suspension and the homogenized slurry are free of a dispersing agent. [00105] Some non-limiting examples of polymeric acid include polylactic acid, polysuccinic acid, polymalic acid, pyromucric acid, polyfumaric acid, polysorbic acid, polylininic acid, polylininic acid, polyglutamic acid, polymethacrylic acid, polygolic acid, polyglycolic acid, polyglycolic acid polyamic acid, polyphoric acid, polyacetic acid, polypropionic acid, polybutyric acid, polysebatic acid, copolymers thereof and combinations thereof. In certain embodiments, the homogenized slurry is free of a polymeric acid. Petition 870190074557, of 8/2/2019, p. 33/75 29/65 [00106] Some non-limiting examples of suitable non-ionic surfactant include a carboxylic ester, a polyethylene glycol ester and combinations thereof. [00107] Some non-limiting examples of suitable anionic surfactant include an alkyl sulfate salt, an alkyl polyethoxylate ether sulfate, an alkyl benzene sulfate, an alkyl ether sulfate, a sulfonate, a sulfosuccinate, an sarcosinate and combinations thereof. In some modalities, the anionic surfactant that comprises a cation selected from the group consisting of sodium, potassium, ammonia and combinations thereof. In certain embodiments, the anionic surfactant is sodium dodecylbenzene sulfonate, sodium stearate, lithium dodecyl sulfate or a combination thereof. In some embodiments, the homogenized slurry is free of anionic surfactant. [00108] Some non-limiting examples of a suitable cationic surfactant include an ammonia salt, a phosphonium salt, an imidazole salt, a sulfosphonium salt and combinations thereof. Some non-limiting examples of suitable ammonia salt include stearyl trimethylammonium bromide (STAB), cetyl trimethylammonium bromide (CTAB), myristyl trimethylammonium bromide (MTAB), trimethylhexadecyl ammonium chloride and combinations thereof. In some embodiments, the homogenized slurry is free of cationic surfactant. [00109] Some non-limiting examples of suitable amphoteric surfactants are surfactants that contain both cationic and anionic groups. The cationic group is ammonia, phosphonium, imidazolium, sulfonium or a combination thereof. The anionic hydrophilic group is carboxylate, sulfonate, sulfate, phosphonate or a combination thereof. In some embodiments, the homogenized slurry is free of amphoteric surfactant. [00110] After uniform mixing of slurry components, the homogenized slurry can be applied in a current collector to Petition 870190074557, of 8/2/2019, p. 34/75 30/65 form a coated film on the current collector. The current collector acts to collect electrons generated by electrochemical reactions of the active cathode material or to supply electrons necessary for electrochemical reactions. In some embodiments, the current collector may be in the form of a sheet, plate or film. In certain embodiments, the current collector is stainless steel, titanium, nickel, aluminum or electrically conductive resin. In some embodiments, the current collector is not coated with a protective coating. In certain embodiments, the protective coating that comprises a material that contains carbon. [00111] During coating, pH is a very important parameter in controlling the stability of the slurry. The risk of pH instability creates the need for the slurry to be coated immediately after homogenization. This is very difficult to do under mass production conditions, where the coating process often continues for many hours. If there are changes in pH, then the key properties, for example viscosity and degree of dispersion, will also change. Any instability such as changing viscosity and degree of dispersion during coating will be a serious issue and the coating process will become unstable. Therefore, these key properties need to be very stable during homogenization and remain stable after homogenization for a long time. [00112] In addition, the alkalinity of the slurry can also have a negative effect on the metal current collector. For example, a highly alkaline pH can oxidize the current collector material such as Al. As a result, the adhesion properties of the electrode components on the collector can be reduced. The coated film is easily exfoliated and also lacks durability. Insufficient or irregular fixation of the coating material will also reduce the electronic conduction of the positive electrode. [00113] Corrosion can significantly reduce the life span of the Petition 870190074557, of 8/2/2019, p. 35/75 31/65 battery. The slurry should have a stable pH. In some embodiments, the pH of the homogenized slurry is about 8 to about 10. In certain embodiments, the pH change observed during homogenization is less than 0.5 pH per unit, less than 0.4 pH per unit, less than 0.3 pH per unit, less than 0.2 pH per unit or less than 0.1 pH per unit. [00114] In some embodiments, the current collector has a thickness of about 6 μτη to about 100 gm since the thickness will affect the volume occupied by the current collector inside a battery and the amount of the active electrode material and, thus, the capacity in the battery. [00115] In certain embodiments, the coating process is carried out using a scraper blade coating machine, a grooved die coating machine, a transfer coating machine, a spray coating machine, a roller coating machine, an engraving coating machine , an immersion coating machine or a curtain coating machine. In some embodiments, the thickness of the coated film in the current collector is from about 10 gm to about 300 gm or from about 20 gm to about 100 gm. [00116] Evaporating the solvent to create a dry porous electrode is necessary to manufacture the battery. After applying the homogenized slurry to a current collector, the coated film on the current collector can be dried by a dryer to obtain the battery electrode. Any dryer that can dry the coated film on the current collector can be used in this document. Some non-limiting examples of the dryer include a batch drying oven, a belt drying oven and a microwave drying oven. Some non-limiting examples of the belt drying oven include a hot air belt drying oven, a resistance belt drying oven, an inductive belt drying oven and a microwave belt drying oven. [00117] In some modalities, the conveyor drying oven for Petition 870190074557, of 8/2/2019, p. 36/75 32/65 drying the coated film on the current collector includes one or more heating sections, where each heating section is individually temperature controlled and each heating section can independently include controlled heating zones . [00118] In certain embodiments, the conveyor drying oven comprising a first heating section positioned on one side of the conveyor and a second heating section positioned on the opposite side of the conveyor from the first heating section, in which each one of the first and second heating sections independently comprises one or more heating elements and a temperature control system connected to the heating elements of the first heating section and the second heating section in order to selectively monitor and control the heating temperature each heating section. [00119] In some embodiments, the conveyor drying oven that comprises a plurality of heating sections, in which each heating section includes independent heating elements that are operated to maintain a constant temperature within the heating section. [00120] In certain embodiments, each of the first and second heating sections independently has an inlet heating zone and an outlet heating zone, in which each of the inlet and outlet heating zones independently comprises a or more heating elements and a temperature control system connected to the heating elements of the inlet heating zone and the outlet heating zone in order to selectively monitor and control the temperature of each heating zone separately from the temperature control of the other heating zones. [00121] The film coated on the current collector should be dried at a temperature of approximately 60 ° C or less in Petition 870190074557, of 8/2/2019, p. 37/75 33/65 approximately 5 minutes or less. Drying the coated positive electrode at temperatures above 60 ° C can result in undesirable decomposition of the active cathode material, increasing the pH of the slurry and affecting the performance of the positive electrode. [00122] Furthermore, corrosion of the current collector can seriously affect the performance of batteries, degrading the cyclability and rating performance. Drying at a relatively low temperature below about 60 ° C for less than 5 minutes can reduce aluminum current collector corrosion. [00123] In some embodiments, the film coated on the current collector can be dried at a temperature of about 30 ° C to about 60 ° C. In certain embodiments, the film coated on the current collector can be dried at a temperature of about 30 ° C to about 55 ° C, from about 30 ° C to about 50 ° C, from about 30 ° C to about 45 ° C, about 30 ° C to about 40 ° C, about 35 ° C to about 45 ° C or about 35 ° C to about 40 ° C. In some embodiments, the film coated on the current collector is dried at a temperature of less than 65 ° C, less than 60 ° C, less than 55 ° C, less than 50 ° C, less than 45 ° C or less than 40 ° C. In some embodiments, the film coated on the current collector is dried at a temperature of about 60 ° C, about 55 ° C, about 50 ° C, about 45 ° C, about 40 ° C or about 35 ° C. Decreased drying temperatures can prevent undesirable decomposition of the active cathode material, which is high in nickel and / or manganese. [00124] In certain modalities, the belt moves at a speed of about 2 meters / minute to about 30 meters / minute, from about 2 meters / minute to about 25 meters / minute, of about 2 meters / minute at about 20 meters / minute, from about 2 meters / minute at about 16 meters / minute, from about 3 meters / minute at about 30 meters / minute, from about 3 meters / minute at about 20 meters / minute or about 3 Petition 870190074557, of 8/2/2019, p. 38/75 34/65 meters / minute at about 16 meters / minute. [00125] Controlling the length and speed of the belt can regulate the drying time of the coated film. In some embodiments, the film coated on the current collector can be dried for a period of time from about 2 minutes to about 5 minutes, from about 2 minutes to about 4.5 minutes, from about 2 minutes to about 4 minutes, about 2 minutes to about 3 minutes, about 2.5 minutes to about 5 minutes, about 2.5 minutes to about 4.5 minutes, about 2.5 minutes to about 4 minutes, about 3 minutes to about 5 minutes, about 3 minutes to about 4.5 minutes, about 3 minutes to about 4 minutes, from about 3.5 minutes to about 5 minutes or about 3.5 minutes to about 4.5 minutes. In certain embodiments, the film coated on the current collector can be dried for a period of time of less than 5 minutes, less than 4.5 minutes, less than 4 minutes, less than 3.5 minutes, less than than 3 minutes, less than 2.5 minutes or less than 2 minutes. In some embodiments, the film coated on the current collector can be dried for a period of time of about 5 minutes, about 4.5 minutes, about 4 minutes, about 3.5 minutes, about 3 minutes, about 2.5 minutes or about 2 minutes. [00126] Since the active cathode materials are sufficiently active to react with water, it is necessary to control the total processing time of the method especially steps 3) to 6). In some embodiments, the total processing time for steps 3) to 6) is about 2 hours to about 8 hours, about 2 hours to about 7 hours, about 2 hours to about 6 hours, about 2 hours to about 5 hours, about 2 hours to about 4 hours, or about 2 hours to about 3 hours. In certain embodiments, the total processing time for steps 3) to 6) is less than 8 hours, less than 7 hours, less than 6 hours, less than 5 hours, less than 4 hours or less than 3 hours. In some Petition 870190074557, of 8/2/2019, p. 39/75 35/65 modalities, the total processing time for steps 3) to 6) is about 8 hours, about 7 hours, about 6 hours, about 5 hours, about 4 hours, about 3 hours or about 2 hours. [00127] After the coated film on the current collector is dried, a cathode is formed. In some embodiments, the cathode is mechanically compressed in order to improve the cathode density. [00128] The method described in this document has the advantage that the aqueous solvent can be used in the manufacturing process, which can save processing time and installations by avoiding the need to handle or recycle hazardous organic solvents. Since the aqueous solvent can be used in the present invention, the electrode would require less time and energy in the drying step. Additionally, costs are reduced by simplifying the total process. Therefore, this method is especially suitable for industrial processes because of its low cost and ease of handling. [00129] A battery ages with use and time, even if not used. The operating conditions of the battery affect the aging process. Temperature and charging voltages are some of the most relevant factors in aging. Exposing a battery to high temperatures can accelerate its aging. In general, a battery such as an automotive battery is often exposed to a high temperature when in operation. It is common for an automotive battery to lose approximately 20% to 30% of its initial battery capacity in the first year. [00130] The cathode preparation method described in this document which has low mixing temperature, reduced mixing times, controlled cathode slurry pH, low drying temperatures and decreased drying times of the coated film significantly improves performance in high temperature of the batteries. The batteries Petition 870190074557, of 8/2/2019, p. 40/75 36/65 that comprise positive electrodes prepared in accordance with the present invention show little loss of capacity during high temperature storage and high cycle stability under high temperature conditions. The development of water-based coating technology without reducing cycling performance is achieved by the present invention. [00131] In some modalities, the electrode has the capacity to retain at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97% or 98% of its initial storage capacity after 300 cycles at a rate of 1C to 25 ° C in a complete cell. In certain embodiments, the electrode has the capacity to retain at least about 90%, 91%, 92%, 93%, 94% or 95% of its initial storage capacity after 500 cycles at a rate of 1C to 25 ° C in a complete cell. In some modalities, the electrode has the capacity to retain at least about 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94% or 95% of its capacity initial storage after 1,000 cycles at a rate of 1C to 25 ° C in a complete cell. In certain modalities, the electrode has the capacity to retain at least about 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89% or 90% of its capacity initial storage after 1,500 cycles at a rate of 1C to 25 ° C in a complete cell. In some modalities, the electrode has the capacity to retain at least about 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84% or 85% of its capacity initial storage after 2,000 cycles at a rate of 1C to 25 ° C in a complete cell. [00132] The capacity retention of a battery also varies with the storage temperature. If a battery is stored at high temperatures, self-discharge will be accelerated. The battery described in this document shows good capacity retention that maintains more than 60% of the initial capacity after 2 weeks of storage at an elevated temperature. In some embodiments, the capacity retention of the battery is not less than 50%, not less than 55%, not less than Petition 870190074557, of 8/2/2019, p. 41/75 37/65 60%, not less than 65% or not less than 70% of its initial capacity after storage for 2 weeks at 60 ° C. [00133] The following examples are presented to exemplify the modalities of the invention, but are not intended to limit the present invention to the specific modalities established. Unless otherwise stated, all parts and percentages are by weight. All numerical values are approximate. When numerical ranges are provided, it should be understood that modalities outside the defined ranges may still be within the scope of the invention. Specific details described in each example should not be constructed as necessary features of the invention. EXAMPLES [00134] The pH values of the slurry were measured by an electrode-type pH meter (ION 2700, Eutech Instruments) at the beginning and at the end of homogenization of the cathode slurry. The slurry viscosity was measured using a rotational viscosity meter (NDJ-5S, Shanghai JT Electronic Technology Co. Ltd., China). EXAMPLE 1 A) PREPARATION OF POSITIVE ELECTRODE [00135] A first suspension was prepared by dispersing 0.36 kg of carbon black (SuperP; obtained from Timcal Ltd, Bodio, Switzerland) and 0.36 kg polyacrylonitrile (PAN) (LA) 132, Chengdu indigo Power Sources Co., Ltd., China) in 3.6 1 of deionized water while stirred with a 10 1 planetary mixer (CMDJ-10L; obtained from ChienMei Co. Ltd., China), followed by cooling the mixture to 15 ° C. After the addition, the first suspension was further stirred for about 30 minutes at 15 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. [00136] A second suspension was prepared by dispersing 8.28 kg of LiNio, 8Mno, iCoo, i02 (NMC811) (obtained from Henan Kelong Petition 870190074557, of 8/2/2019, p. 42/75 38/65 NewEnergy Co., Ltd., Xinxiang, China) in the first suspension at 15 ° C. Therefore, 2.4 1 of deionized water is added to the second suspension to adjust its solid content. After adjusting the solid content, the second suspension was degassed at a pressure of 1,000 Pa for 4 minutes. Then, the second suspension was further agitated for about 2 hours at 15 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. A cathode slurry formulation of 55.2 wt% NMC811, 2.4 wt% carbon black, 2.4 wt% LA132 and 40 wt% deionized water was prepared. The viscosity of the cathode slurry at 25 ° C was 2,350 mPa-s. The solid content of the cathode slurry was 60% by weight. The formulation of Example 1 is shown in Table 1 below. [00137] Right after preparation, the cathode slurry was coated on both sides of an aluminum foil that is 20 pm thick using a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 3.5 minutes in a 24-meter-long hot air drying oven as a transfer coating submodule operated at a conveyor speed of about 6.8 meters / minute at about 40 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.98 g / cm 3 . B) PREPARATION OF NEGATIVE ELECTRODE [00138] A negative electrode slurry was prepared by mixing 90% by weight of rigid carbon (HC; 99.5% purity, obtained from Ruifute Technology Ltd., Shenzhen, Guangdong, China) with 1.5% by weight carboxymethylcellulose (CMC, BSH-12, DKS Co. Ltd., Japan) and 3.5% by weight SBR (AL-2001, NIPPON A&L INC., Japan) as a binder and 5 % by weight of carbon black as a conductive agent in deionized water. The content of Petition 870190074557, of 8/2/2019, p. 43/75 39/65 solid anode slurry was 50% by weight. The slurry was coated on both sides of a copper foil having a thickness of 9 pm through the use of a transfer coating with an area density of about 19 mg / cm 2 . The films coated on the copper foil were dried at about 50 ° C for 2.4 minutes in a 24 meter long hot air dryer operated at a belt speed of about 10 meters / minute to obtain an electrode negative. The electrode was then pressed to increase the coating density and the density was 1.8 g / cm 3 . C) FITTING CELL ASSEMBLY (POUCH) CELL) [00139] After drying, the resulting cathode film and anode film were used to prepare the cathode and anode respectively by cutting into individual electrode plates. A bag-shaped cell was assembled by stacking the cathode and anode electrode plates alternately and then packed in a case made from a laminated aluminum and plastic film. The cathode and anode electrode plates were kept separate by the separators and the case was preformed. The separator was a microporous ceramic-coated membrane made from non-woven fabric (SEPARION, Evonik Industries, Germany), which had a thickness of about 35 pm. An electrolyte was then charged in the case retaining the electrodes packed in an argon atmosphere with high purity with humidity and oxygen content less than 1 ppm. The electrolyte was a solution of LiPF6 (1 M) in a mixture of ethylene carbonate (EC), ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC) in a volume ratio of 1: 1: 1. After charging the electrolyte, the bag-shaped cell was vacuum sealed and then mechanically pressed using a standard square-shaped punching tool. The electrochemical performance of the shaped cell Petition 870190074557, of 8/2/2019, p. 44/75 40/65 bag of Example 1 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 1. EXAMPLE 2 A) PREPARATION OF POSITIVE ELECTRODE [00140] A first suspension was prepared by dispersing 0.3 kg of carbon black and 0.3 kg of LA132 in 4.5 1 of deionized water while stirring with a 10 1 planetary mixer , followed by cooling the mixture to 10 ° C. After the addition, the first suspension was further stirred for about 30 minutes at 10 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. [00141] A second suspension was prepared by dispersing 6.9 kg of NMC811 in the first suspension at 10 ° C. Therefore, 3 l of deionized water is added to the second suspension to adjust its solid content. After adjusting the solid content, the second suspension was degassed at a pressure of 1,000 Pa for 4 minutes. Then, the second suspension was further agitated for about 2.5 hours at 10 o C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. A cathode slurry formulation of 46 wt% NMC811, 2 wt% carbon black, 2 wt% LA132 and 50 wt% deionized water was prepared. The viscosity of the cathode slurry at 25 ° C was 2,760 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Example 2 is shown in Table 1 below. [00142] Immediately after preparation, the cathode slurry was coated on both sides of an aluminum foil that is 20 μτη thick using a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 4.2 minutes in a hot air drying oven on a 24 meter long conveyor as a coating sub-module by Petition 870190074557, of 8/2/2019, p. 45/75 41/65 transfer operated at a conveyor speed of about 5.7 meters / minute and about 37 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.85 g / cm 3 . B) PREPARATION OF NEGATIVE ELECTRODE [00143] A negative electrode slurry was prepared by mixing 90% by weight of rigid carbon with 5% by weight of LA132 and 5% by weight of carbon black in deionized water. The solid content of the anode slurry was 50% by weight. The slurry was coated on both sides of a copper foil having a thickness of 9 pm through the use of a transfer coating with an area density of about 19 mg / cm 2 . The films coated on the copper foil were dried at about 50 ° C for 2.4 minutes in a 24 meter long hot air dryer operated at a belt speed of about 10 meters / minute to obtain an electrode negative. The electrode was then pressed to increase the coating density and the density was 1.8 g / cm 3 . C) POCKET FORMAT CELL ASSEMBLY [00144] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Example 2 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 2. EXAMPLE 3 A) PREPARATION OF POSITIVE ELECTRODE [00145] The positive electrode slurry was prepared as in Example 2, with the exception that the first suspension was prepared at 0 ° C instead of 10 ° C; the solid content of the second suspension was adjusted by adding a mixture of deionized water and ethanol in a 2: 1 weight ratio instead of deionized water alone; and the second suspension was homogenized by a circulating ultrasonic flow cell (NP8000, Petition 870190074557, of 8/2/2019, p. 46/75 42/65 obtained from Guangzhou Newpower Ultrasonic Electronic Equipment Co., Ltd., China) at 0 ° C for 3.5 hours instead of a planetary mixer at 10 ° C for 2.5 hours. The viscosity of the cathode slurry at 25 ° C was 2,200 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Example 3 is shown in Table 1 below. [00146] Shortly after preparation, the cathode slurry was coated on both sides of an aluminum foil that has a thickness of 20 gm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 3.2 minutes in a 24-meter long hot air drying oven as a transfer coating submodule operated at a conveyor speed of about 7.5 meters / minute and about 45 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.91 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00147] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00148] A bag-shaped cell was assembled as in Example 1. The electrochemical performance of the bag-shaped cell of Example 3 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 3. EXAMPLE 4 A) PREPARATION OF POSITIVE ELECTRODE [00149] A first suspension was prepared by dispersing 0.29 kg of carbon black and 0.29 kg of LA132 in 4.05 1 of deionized water while stirring with a 10 1 planetary mixer , followed by cooling the mixture to 15 ° C. After the addition, the first suspension was Petition 870190074557, of 8/2/2019, p. 47/75 43/65 stirred further for about 30 minutes at 15 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. [00150] A second suspension was prepared by dispersing 7.67 kg of Lii, oNio, 8Coo, i5Alo, o502 (NCA) (obtained from Hunan Rui Xiang New Material Co., Ltd., Changsha, China) in the first suspension at 15 ° C. Therefore, 2.7 l of deionized water are added to the second suspension to adjust its solid content. After adjusting the solid content, the second suspension was degassed at a pressure of 1,000 Pa for 4 minutes. Then, the second suspension was further agitated for about 2.5 hours at 15 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. A cathode slurry formulation of 51.15% by weight NCA, 1.925% by weight of carbon black, 1.925% by weight of LA132 and 45% by weight of deionized water was prepared. The viscosity of the cathode slurry at 25 ° C was 3,350 mPa-s. The solid content of the cathode slurry was 55% by weight. The formulation of Example 4 is shown in Table 1 below. [00151] Right after preparation, the homogenized slurry was coated on both sides of an aluminum foil that has a thickness of 20 pm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 4.5 minutes in a 24 meter long hot air drying oven as a transfer coating submodule operated at a conveyor speed of about 5.3 meters / minute and about 35 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 3.3 g / cm 3 . B) PREPARATION OF NEGATIVE ELECTRODE [00152] A slurry of negative electrode was prepared in the manner Petition 870190074557, of 8/2/2019, p. 48/75 44/65 as in Example 1. C) POCKET FORMAT CELL ASSEMBLY [00153] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Example 4 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 4. EXAMPLE 5 A) PREPARATION OF POSITIVE ELECTRODE [00154] A first suspension was prepared by dispersing 0.26 kg of carbon black and 0.26 kg of LA132 in 4.5 1 of deionized water while stirring with a 10 1 planetary mixer , followed by cooling the mixture to 10 ° C. After the addition, the first suspension was further stirred for about 30 minutes at 10 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. [00155] A second suspension was prepared by dispersing 6.98 kg of NCA in the first suspension at 10 ° C. Therefore, 3 l of deionized water is added to the second suspension to adjust its solid content. After adjusting the solid content, the second suspension was degassed at a pressure of 1,000 Pa for 4 minutes. Then, the second suspension was further stirred for about 3.2 hours at 10 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. A cathode slurry formulation of 46.5 wt% NCA, 1.75 wt% carbon black, 1.75 wt% LA132 and 50 wt% deionized water was prepared. The viscosity of the cathode slurry at 25 ° C was 2,980 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Example 5 is shown in Table 1 below. [00156] Right after preparation, the homogenized slurry was coated on both sides of an aluminum sheet that has a thickness Petition 870190074557, of 8/2/2019, p. 49/75 45/65 of 20 μιτι through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 3.1 minutes in a 24-meter-long hot air drying oven as a transfer coating sub-module operated at a belt speed of about 7.7 meters / minute and about 50 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 3.1 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00157] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00158] A bag-shaped cell was assembled as in Example 1. The electrochemical performance of the bag-shaped cell of Example 5 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 5. EXAMPLE 6 A) POSITIVE ELECTRODE PREPARATION [00159] A positive electrode slurry was prepared as in Example 5, with the exception that the first suspension was prepared at 0 ° C instead of 10 ° C; the solid content of the second suspension was adjusted by adding a mixture of deionized water and isopropanol (IPA) in a 2: 1 weight ratio instead of deionized water alone; and the second suspension was homogenized by a circulating ultrasonic flow cell (NP8000, obtained from Guangzhou Newpower Ultrasonic Electronic Equipment Co., Ltd., China) at 0 ° C for 4 hours instead of a planetary mixer at 10 ° C for 3.2 hours. The viscosity of the cathode slurry at 25 ° C was 2,060 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Example 6 is shown in Table 1 below. Petition 870190074557, of 8/2/2019, p. 50/75 46/65 [00160] Shortly after preparation, the homogenized slurry was coated on both sides of an aluminum foil that has a thickness of 20 μτη through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 3.7 minutes in a hot air drying oven on a 24 meter long conveyor as a transfer coating submodule operated at a conveyor speed of about 6.5 meters / minute and about 42 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.95 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00161] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00162] A bag-shaped cell was assembled as in Example 1. The electrochemical performance of the bag-shaped cell of Example 6 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 6. EXAMPLE 7 A) PREPARATION OF POSITIVE ELECTRODE [00163] A first suspension was prepared by dispersing 0.3 kg of carbon black and 0.3 kg of LA132 in 4.5 1 of deionized water while stirring with a 10 1 planetary mixer , followed by cooling the mixture to 10 ° C. After the addition, the first suspension was further stirred for about 30 minutes at 10 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. [00164] A second suspension was prepared by dispersing 6.9 kg of Lii, oNio, 6Mno, 2Coo, 202 (NMC622) (obtained from Hunan Rui Xiang Petition 870190074557, of 8/2/2019, p. 51/75 47/65 New Material Co., Ltd., Changsha, China) in the first suspension at 10 ° C. Therefore, 3 l of deionized water is added to the second suspension to adjust its solid content. After adjusting the solid content, the second suspension was degassed at a pressure of 1,000 Pa for 4 minutes. Then, the second suspension was further stirred for about 4 hours at 10 ° C at a planetary blade speed of 40 rpm and a dispersion blade speed of 2,500 rpm. A cathode slurry formulation of 46 wt% NMC622, 2 wt% carbon black, 2 wt% LA132 and 50 wt% deionized water was prepared. The viscosity of the cathode slurry at 25 ° C was 2,110 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Example 7 is shown in Table 1 below. [00165] Right after preparation, the homogenized slurry was coated on both sides of an aluminum foil that has a thickness of 20 pm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 4 minutes in a hot air drying oven on a 24 meter long conveyor as a transfer coating submodule operated at a conveyor speed of about 6 meters / minute and about 45 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.85 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00166] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00167] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Example 7 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 7. Petition 870190074557, of 8/2/2019, p. 52/75 48/65 EXAMPLE 8 A) POSITIVE ELECTRODE PREPARATION [00168] A positive electrode slurry was prepared as in Example 7, with the exception that a core and shell cathode active material (CS LNMgO) was used instead of NMC622 as a active cathode material. The core of the core and shell cathode active material was Lii, oiNio, 9óMgo, o402 (LNMgO) and was prepared by liquid state reaction in which MgO and NiO x (x = 1 to 2) were mixed with LiOH followed by calcination at 850 ° C. The shell of the core and shell cathode active material was Li, 9sCoi, i02 and was prepared by the formation of a Co (OH) 2 precipitate on the core surface to form a precursor, mixing the precursor with L12CO3 (obtained from Tianqi Lithium, Shenzhen, China) to obtain a mixture and calcining the mixture at 800 ° C. The calcined product was crushed by a jet mill (LNJ-6A, obtained from Mianyang Liuneng Powder Equipment Co., Ltd., Sichuan, China) for about 1 hour, followed by passing the crushed product through a 270 sieve. mesh to obtain an active cathode material that has a D50 particle size of about 33 gm. The cobalt content in the active core cathode material and in the shell gradually decreased from the outer shell surface to the inner core. The casing thickness was about 5 gm. The viscosity of the cathode slurry at 25 ° C was 2,650 mPa · s. The solid content of the cathode slurry was 50% by weight. The formulation of Example 8 is shown in Table 1 below. [00169] Right after preparation, the homogenized slurry was coated on both sides of an aluminum sheet that has a thickness of 20 gm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 4 minutes in a 24-meter-long hot air drying oven as a Petition 870190074557, of 8/2/2019, p. 53/75 49/65 transfer coating machine operated at a conveyor speed of about 6 meters / minute and about 45 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.78 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00170] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00171] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Example 8 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 8. COMPARATIVE EXAMPLE 1 A) POSITIVE ELECTRODE PREPARATION [00172] A positive electrode slurry was prepared as in Example 1, with the exception that the first suspension was prepared at 25 ° C instead of 15 ° C; and the second suspension was homogenized by an ultrasonic flow cell circulating at 25 ° C for 5 hours instead of a planetary mixer at 15 ° C for 2 hours. The viscosity of the cathode slurry at 25 ° C was 2,450 mPa-s. The solid content of the cathode slurry was 60% by weight. The formulation of Comparative Example 1 is shown in Table 1 below. [00173] Right after preparation, the homogenized slurry was coated on both sides of an aluminum foil that has a thickness of 20 pm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 5 minutes in a 24-meter long hot air drying oven as a transfer coating submodule operated at a belt speed of about Petition 870190074557, of 8/2/2019, p. 54/75 50/65 4.8 meters / minute and about 60 ° C temperature to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.96 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00174] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00175] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Comparative Example 1 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 9. COMPARATIVE EXAMPLE 2 A) POSITIVE ELECTRODE PREPARATION [00176] A positive electrode slurry was prepared as in Example 1, except that the first suspension was prepared at 40 ° C instead of 15 ° C; and the second suspension was homogenized by a planetary mixer at 40 ° C for 6 hours instead of 15 ° C for 2 hours. The viscosity of the cathode slurry at 25 ° C was 2,670 mPa-s. The solid content of the cathode slurry was 60% by weight. The formulation of Comparative Example 2 is shown in Table 1 below. [00177] Right after preparation, the cathode slurry was coated on both sides of an aluminum foil that is 20 pm thick using a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 5 minutes in a hot air drying oven on a 24 meter long conveyor as a transfer coating submodule operated at a conveyor speed of about 4.8 meters / minute and about 70 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was Petition 870190074557, of 8/2/2019, p. 55/75 51/65 2.86 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00178] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00179] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Comparative Example 2 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 10. COMPARATIVE EXAMPLE 3 A) POSITIVE ELECTRODE PREPARATION [00180] A positive electrode slurry was prepared as in Example 4, with the exception that the first suspension was prepared at 25 ° C instead of 15 ° C; and the second suspension was homogenized by a planetary mixer at 25 ° C for 5 hours instead of 15 ° C for 2.5 hours. The viscosity of the cathode slurry at 25 ° C was 3,050 mPa-s. The solid content of the cathode slurry was 55% by weight. The formulation of Comparative Example 3 is shown in Table 1 below. [00181] Right after preparation, the homogenized slurry was coated on both sides of an aluminum foil that has a thickness of 20 pm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 5 minutes in a 24-meter long hot air drying oven as a transfer coating submodule operated at a belt speed of about 4.8 meters / minute and about 55 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 3.05 g / cm 3 . B) PREPARATION OF NEGATIVE ELECTRODE Petition 870190074557, of 8/2/2019, p. 56/75 52/65 [00182] A negative electrode slurry was prepared as in Example 2. C) POCKET FORMAT CELL ASSEMBLY [00183] A bag-shaped cell was assembled as in Example 1. The electrochemical performance of the bag-shaped cell of Comparative Example 3 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 11. COMPARATIVE EXAMPLE 4 A) POSITIVE ELECTRODE PREPARATION [00184] A positive electrode slurry was prepared as in Example 4, with the exception that the first suspension was prepared at 40 ° C instead of 15 ° C; and the second suspension was homogenized by a planetary mixer at 40 ° C for 10 hours instead of at 15 ° C for 2.5 hours. The viscosity of the cathode slurry at 25 ° C was 1,940 mPa-s. The solid content of the cathode slurry was 55% by weight. The formulation of Comparative Example 4 is shown in Table 1 below. [00185] Immediately after preparation, the cathode slurry was coated on both sides of an aluminum foil that has a thickness of 20 gm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 5 minutes in a hot air drying oven on a 24 meter long conveyor as a transfer coating submodule operated at a conveyor speed of about 4.8 meters / minute and about 65 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.86 g / cm 3 . B) NEGATIVE ELECTRODE PREPARATION [00186] A negative electrode slurry was prepared as in Example 2. Petition 870190074557, of 8/2/2019, p. 57/75 53/65 C) POCKET FORMAT CELL ASSEMBLY [00187] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Comparative Example 4 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 12. COMPARATIVE EXAMPLE 5 A) POSITIVE ELECTRODE PREPARATION [00188] A positive electrode slurry was prepared as in Example 2, with the exception that the first suspension was prepared at 15 ° C instead of 10 ° C; the solid content of the second suspension was adjusted by adding a mixture of deionized water and ethanol in a 2: 1 weight ratio instead of deionized water alone; and the second suspension was homogenized by a planetary mixer at 15 ° C for 3 hours instead of 10 ° C for 2.5 hours. The viscosity of the cathode slurry at 25 ° C was 2,630 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 5 is shown in Table 1 below. [00189] Right after preparation, the homogenized slurry was coated on both sides of an aluminum foil that has a thickness of 20 pm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 5 minutes in a 24-meter long hot air drying oven as a transfer coating submodule operated at a belt speed of about 4.8 meters / minute and about 80 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 3.11 g / cm 3 . B) PREPARATION OF NEGATIVE ELECTRODE [00190] A negative electrode slurry was prepared as in Example 2. Petition 870190074557, of 8/2/2019, p. 58/75 54/65 C) POCKET FORMAT CELL ASSEMBLY [00191] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Comparative Example 5 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 13. COMPARATIVE EXAMPLE 6 A) POSITIVE ELECTRODE PREPARATION [00192] A positive electrode slurry was prepared as in Example 5, with the exception that the first suspension was prepared at 15 ° C instead of 10 ° C; the solid content of the second suspension was adjusted by adding a mixture of deionized water and isopropanol in a 2: 1 weight ratio instead of deionized water alone; and the second suspension was homogenized by a planetary mixer at 15 ° C for 2 hours instead of 10 ° C for 3.2 hours. The viscosity of the cathode slurry at 25 ° C was 2,770 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 6 is shown in Table 1 below. [00193] Immediately after preparation, the cathode slurry was coated on both sides of an aluminum foil that has a thickness of 20 gm through the use of a transfer coating with an area density of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 15 minutes in a hot air drying oven on a 24 meter long conveyor as a transfer coating submodule operated at a conveyor speed of about 4.8 meters / minute and about 40 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 3.29 g / cm 3 . B) PREPARATION OF NEGATIVE ELECTRODE [00194] A negative electrode slurry was prepared as in Example 2. Petition 870190074557, of 8/2/2019, p. 59/75 55/65 C) POCKET FORMAT CELL ASSEMBLY [00195] A pouch cell was assembled as in Example 1. The electrochemical performance of the pouch cell of Comparative Example 6 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 14. COMPARATIVE EXAMPLE 7 A) PREPARATION OF A BINDING SOLUTION [00196] A binder solution was prepared by mixing methyl cellulose (MC) (# M0512, obtained from Sigma-Aldrich, USA), sodium polyacrylate (SPA) (432784, obtained from Sigma-Aldrich, USA) and styrene-butadiene rubber (SBR) (AL-2001, obtained from NIPPON A&L INC., Japan) in a 5: 2: 3 weight ratio in water through the use of a mixer planetary agitation. The binder and water solution was in a 10: 7 weight ratio. The planetary blade speed was 40 rpm and the blade dispersion speed was 1,000 rpm. B) PREPARATION OF A CONDUCTIVE GEL SOLUTION [00197] A conductive gel solution was prepared by dispersing carbon nanotube (obtained from Shenzhen Nanotech Port Co. Ltd, China) and SuperP (obtained from Timcal Ltd, Bodio, Switzerland) in the binder solution stirred by a planetary stirring mixer at a planetary blade speed of 30 rpm and a dispersion blade speed of 1,800 rpm. The conductive gel solution was ground in a ball mill (MSK-SFM-1, obtained from Shenzhen Kejing Star Technology Ltd., China) at 200 revolutions per minute until the ground material had a fineness of 5 μηι. C) PREPARATION OF A FLUID CATHODE PASTE [00198] The active cathode material NMC811, water and the ground conductive gel solution were mixed by a planetary stirring mixer at 25 ° C at a planetary blade speed of 50 rpm and a dispersion blade speed of 1,800 rpm until the ground material has a fineness of 20 Petition 870190074557, of 8/2/2019, p. 60/75 56/65 pm to obtain a mixture. The mixture was degassed at a pressure of 15 kPa for 4 minutes. A cathode slurry was obtained by stirring the mixture for 20 minutes. The cathode slurry comprised 30% NMC811, 12% carbon nanotube, 6% Super-P, 5% water-based bonding material and 47% deionized water by weight, based on the total weight of the cathode slurry. The viscosity of the cathode slurry at 25 ° C was 1,560 mPa · s. The solid content of the cathode slurry was 55% by weight. The formulation of Comparative Example 7 is shown in Table 1 below. D) PREPARATION OF A CATHODE ELECTRODE [00199] Right after preparation, the cathode slurry was coated on both sides of an aluminum foil that has a thickness of 20 pm through the use of a transfer coating with a density area of about 38 mg / cm 2 . The films coated on the aluminum foil were dried for 5 minutes in a hot air drying oven on a 24 meter long conveyor as a transfer coating submodule operated at a conveyor speed of about 4.8 meters / minute and about 70 ° C to obtain a positive electrode. The electrode was then pressed to increase the coating density and the density was 2.92 g / cm 3 . E) POCKET FORMAT CELL ASSEMBLY [00200] A bag cell was assembled as in Example 1. The electrochemical performance of the bag cell of Comparative Example 7 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 15. COMPARATIVE EXAMPLE 8 [00201] A bag-shaped cell was prepared as in Comparative Example 7 with the exception that NCA instead of NMC811 was used as an active cathode material. A bag-shaped cell was assembled as in Example 1. The viscosity of the Petition 870190074557, of 8/2/2019, p. 61/75 57/65 cathode at 25 ° C was 1.375 mPa-s. The solid content of the cathode slurry was 55% by weight. The formulation of Comparative Example 8 is shown in Table 1 below. The electrochemical performance of the pouch-shaped cell of Comparative Example 8 was measured and is shown in Table 2 below. The result of the cycling performance test is shown in Figure 16. COMPARATIVE EXAMPLE 9 [00202] A bag-shaped cell was prepared as in Example 2 with the exception that the first suspension was prepared at 25 ° C instead of 10 ° C; and the second suspension was homogenized at 25 ° C instead of 10 ° C. A bag-shaped cell was assembled as in Example 1. The viscosity of the cathode slurry at 25 ° C was 1,940 mPa · s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 9 is shown in Table 1 below. The electrochemical performance of the pouch-shaped cell of Comparative Example 9 was measured and is shown in Table 2 below. COMPARATIVE EXAMPLE 10 [00203] A bag-shaped cell was prepared as in Example 5 with the exception that the first suspension was prepared at 25 ° C instead of 10 ° C; and the second suspension was homogenized at 25 ° C instead of 10 ° C. A bag-shaped cell was assembled as in Example 1. The viscosity of the cathode slurry at 25 ° C was 2,150 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 10 is shown in Table 1 below. The electrochemical performance of the pouch-shaped cell of Comparative Example 10 was measured and is shown in Table 2 below. COMPARATIVE EXAMPLE 11 [00204] A bag-shaped cell was prepared as in Example 2 with the exception that the second suspension was homogenized for 8 hours instead of 2.5 hours. A bag-shaped cell was assembled Petition 870190074557, of 8/2/2019, p. 62/75 58/65 as in Example 1. The viscosity of the cathode slurry at 25 ° C was 1,830 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 11 is shown in Table 1 below. The electrochemical performance of the pouch-shaped cell of Comparative Example 11 was measured and is shown in Table 2 below. COMPARATIVE EXAMPLE 12 [00205] A bag-shaped cell was prepared as in Example 2 with the exception that the coated film on the current collector was dried at 80 ° C instead of 37 ° C. A bag-shaped cell was assembled as in Example 1. The viscosity of the cathode slurry at 25 ° C was 2,570 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 12 is shown in Table 1 below. The electrochemical performance of the pouch-shaped cell of Comparative Example 12 was measured and is shown in Table 2 below. COMPARATIVE EXAMPLE 13 [00206] A bag-shaped cell was prepared as in Example 2 with the exception that the coated film on the current collector was dried for 10 minutes instead of 4.2 minutes. A bag-shaped cell was assembled as in Example 1. The viscosity of the cathode slurry at 25 ° C was 2,610 mPa-s. The solid content of the cathode slurry was 50% by weight. The formulation of Comparative Example 13 is shown in Table 1 below. The electrochemical performance of the pouch-shaped cell of Comparative Example 13 was measured and is shown in Table 2 below. Petition 870190074557, of 8/2/2019, p. 63/75 Οχ l / G in 2 · α o• g _£ _ ω o IO d- G4 XO IOIO O rG 05 q cd ícd7 C7) O cfASS --1 cathode flu paste O §£cd N<DH of start logen action The ox 10.3 The θ ' 10.2 9.5 9.9 9.1 oxbO 9.4 Q. n «Z -§O4— * the α cd <Ass 2 CD CD <D CD CD HH CD CD CD <υ + > but but + but but but but but O 'CD 'CD CD 'CD 'CD 05 'CD 'CD 'CD CZThe) but 'Ctf 'CD OC4 C4 G4 G4 G4 Γ4 G4 G4 G4 WCG CG CG CG CG Γ * Ί CG CG CG cd Q o < < < < < < < < < u Ou u u u ass ΌO 3 J · «z 7jOg> o -g 2nd& -gS α<D .2 3.5 C4 C4CG 4.5 3.1 CG d- d- IO 03 Ui CD ÇU H andLO COÍi corr section 2E O O O IO l / G O G4 IO IO Oδ d- CG d- CG l / G d- d- d- 50 Q. HOICD 2second generation & cd £ O <u _2 Η β C4 IO cf 3.5 IO cí C4CG d- d- d- IO 2 butts E t5 x Q- Z — Xg o IO O O IO O O O O IO O CD P_> (N K Ho> O O 1 1 G4 but'ass ΌO OO bO oo < < < G4 XO s oo 73 <cd O u O O O O O z O *ÇO O<D Ό s s s z z z s u s 4— *05 z z z z cz z s ύ G4 CG d- IO XO O bO the 2 O O O O O O O O , 2> 1 1 1 1 1 1 1 1 s g <D <D <D <D <D <D <D <D <D cd X Q- X X X X X X X X W g o W W W W W W W W O Petition 870190074557, of 8/2/2019, p. 64/75 ο 50 ^ 'too05 ooP cf cf cf θ ' θ ' cf cf5050 C * 1 50 OO oo O θ ' O θ ' 05 05 oo O 05 O < o5 Ass o5 o5 o5 O HH o5 o5 05 o5 + bO bO but + bO bO bO bO '05 '05 '05 o5 o5 '05 '05 '05 '05 bfí bO '05 '05 C4 C4 C4 C4 C4 C4 C * 1 C * 1 C * 1 C * 1 C * 1 C * 1 C * 1 < < < < < 5 z 5 z < < U U U U U <Z! <Z! U U m C4m m m mm m 't C * 1 O m m O O O O O O O m 50 oo 't O O C * 1 IO 50OC4 ass ass P C4 mC * 1 C4 C * 1 O m O m m m m m mC4 't C4 C4 C4 C4 < <<<< oo oo oo oo O O O O O O O O O s z Z s z s z s z z zzzC4 C * 1 'ί- m 50 O oo 05 / * 5 o> o> ο> o> o> o> o> O> O1 "H d. '5 d. '5 d '5 d '5 d '5 d ‘5 d ‘5 d ‘5 Q. o5g 2 g 2 g 2 g 2 g 2 g 2 g 2 S c ° S c5 S c5 S c5 S c5 S c5 S c5 S c5 S c5 CD Q. X Q. X Q. X Q. X Q. X Q. X Λ X Λ X Q. X £ W g W g W g W g W g w g W g W g w § O O O O O O O O O O O O O O O O O Comparative example NMC811 10 $ 37 4.2 LA132 water Petition 870190074557, of 8/2/2019, p. 65/75 Comparative example NMC811 10 80 4.2 LA132 water θ 'c5 e> fi '05 G4 CG < Γ CG Petition 870190074557, of 8/2/2019, p. 66/75 62/65 [00207] The battery was galvanically tested at a current density of C / 2 at 25 ° C on a battery tester (BTS-5V20A, obtained from Neware Electronics Co. Ltd, China) between 3, 0 V and 4.2 V. The nominal capacities of the bag-shaped cells of Examples 1 to 8 and Comparative Examples 1 to 13 are shown in Table 2 below. [00208] The cycling performance of the bag-shaped cells of Examples 1 to 8 and Comparative Examples 1 to 13 was tested by charging and discharging at a constant current rate of 1C between 3.0 V and 4.2 V at about 60 ° C in a heated chamber (T-HWS-150U, Dongguan TIANYI Instrument Co. Ltd., China). The results of testing the cyclability performance of cells in bag format are shown in Table 2 below. TABLE 2 Measured values Estimated values by extrapolation Nominal capacity(Ah) n- ofCycle Capacity retention (%) Bag-shaped cell cycle life with 80% capacity retention Example 1 9.68 355 85.2 480 Example 2 10.34 479 82.4 544 Example 3 9.84 491 80.6 506 Example 4 9.5 437 83.1 517 Example 5 10.31 398 83.7 488 Example 6 9.85 469 80.9 491 Example 7 9.22 336 83.3 402 Example 8 9.05 393 81.7 430 Petition 870190074557, of 8/2/2019, p. 67/75 63/65 Comparative example 1 9.64 166 81.1 176 Comparative example 2 10.5 137 81.6 149 Comparative example 3 10.08 217 85.5 299 Comparative example 4 10.48 186 86.4 274 Comparative example 5 9.86 176 84.9 233 Comparative example 6 9.72 203 87.0 312 Comparative example 7 9.97 112 80.8 117 Comparative example 8 9.74 96 78.4 89 Comparative example 9 9.98 324 83.0 381 Comparative example 10 10.31 326 84.2 413 Comparative example 11 9.55 361 81.3 386 Comparative example 12 9.86 255 84.9 338 Example 10.38 398 82.7 460 comparative 13 [00209] The pouch-shaped cells of Examples 1 to 8 showed excellent cyclability under high temperature conditions. Batteries prepared by the method described in this document show improved performance, especially in the case of active high-nickel cathode materials. [00210] The pouch-shaped cells of Example 2 and Comparative Example 2 were disassembled after 200 and 137 charge / discharge cycles respectively. The aluminum current collector for each cell was Petition 870190074557, of 8/2/2019, p. 68/75 64/65 examined. The surface images of the aluminum current collector of Example 2 and Comparative Example 2 were shown in Figures 17 and 18 respectively. The aluminum chain collector of Example 2 has a smooth surface whereas that of comparative Example 2 has a rough surface with pinholes due to corrosion. During coating and drying, the aluminum metal in the current collecting cathode can dissolve and contaminate the cathode electrode layer. The present invention can prevent corrosion of aluminum current collectors. [00211] The pouch-shaped cells of Examples 1 to 8 and Comparative Examples 1 to 13 were fully loaded and stored for 2 weeks at 60 ° C. After 2 weeks, the cells were removed from the 60 ° C chamber and tested at 25 ° C. The cells were discharged at 1 ° C, during unloading, the remaining capacity was measured. The test results are shown in Table 3 below. TABLE 3 Capacity retention (%) after storage for 2 weeks at 60 ° C Example 1 63 Example 2 69 Example 3 71 Example 4 67 Example 5 76 Example 6 62 Example 7 72 Example 8 78 Comparative example 1 51 Comparative example 2 42 Comparative example 3 57 Comparative example 4 46 Comparative example 5 39 Comparative example 6 47 Petition 870190074557, of 8/2/2019, p. 69/75 65/65 Comparative example 7 37 Comparative example 8 32 Comparative example 9 63 Comparative example 10 61 Comparative example 11 66 Comparative example 12 55 Comparative example 13 59 [00212] Although the present invention has been described in relation to a limited number of modalities, the features specific to one modality should not be allocated to other modalities of the invention. In some embodiments, the methods may include numerous steps not mentioned in this document. In other embodiments, the methods do not include or are substantially free from any steps not listed in this document. Variations and modifications of the described modalities exist. The attached claims are intended to cover all such modifications and variations as they fall within the scope of the invention.
权利要求:
Claims (18) [1] 1) dispersing a binding material and conducting agent in an aqueous solvent to form a first suspension; 1. Method for preparing a cathode for a secondary battery, characterized by the fact that it comprises the steps of: [2] 2/4 carbon, carbon black, graphite, expanded graphite, graphene, graphene nanoplatelets, carbon fibers, carbon nanofibers, graphite carbon flake, carbon tubes, carbon nanotubes, activated carbon, mesoporous carbon and combinations thereof . 2. Method according to claim 1, characterized in that the bonding material is selected from the group consisting of styrene-butadiene rubber, carboxymethylcellulose, polyvinylidene fluoride, acrylonitrile copolymer, polyacrylic acid, polyacrylonitrile, poly (vinylidene fluoride) -hexafluoropropene, LA132, LA133, latex, an alginic acid salt and combinations thereof. 2) cool the first suspension to a temperature of -5 ° C to 15 ° C; [3] Method according to claim 2, characterized in that the alginic acid salt comprises a cation selected from Na, Li, K, Ca, NH 4 , Mg, Al or a combination thereof. 3) adding an active cathode material to the first suspension to form a second suspension; [4] 4/4 fact that the total processing time for steps 3) to 6) is from 2 hours to 6 hours. 4. Method according to claim 1, characterized by the fact that the conductive agent is selected from the group consisting of Petition 870190074557, of 8/2/2019, p. 71/75 4) homogenize the second suspension through a homogenizer at a temperature of -5 ° C to 15 ° C to obtain a homogenized slurry; [5] Method according to claim 1, characterized in that the aqueous solvent further comprises ethanol, isopropanaol, methanol, acetone, n-propanol, t-butanol, n-butanol, dimethyl ketone, methyl ethyl ketone, ethyl acetate, isopropyl acetate, propyl acetate and combinations thereof. 5) apply the homogenized slurry to a current collector to form a coated film on the current collector; and [6] 6. Method according to claim 1, characterized by the fact that the active cathode material is selected from the group consisting of Lii + x Ni a MnbCo c Al (i_a-bc) O2, LiNio, 33Mno, 33COo, 3302, LiNiO, 4 MNO Coo 4, 202, LiNio, 5 Mn 0 , 3Coo, 202, LiNio, oh, 2Coo, 202, LiNio, 7Mno, i5Coo, i502, LiNio, «M no. i Coo, ι O2, LiNio, 92Mno, the 4 Coo, the 4 02, LiNio, 8Coo, i5Alo, o502, LÍN1O2, LiMnCL, LiMn2O 4 , Li2MnO3 and combinations thereof; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l. 6) dry the coated film in the current collector at a temperature of 35 ° C to 65 ° C to form the cathode, in which the aqueous solvent is water; and wherein the total processing time for steps 5) and 6) is less than 5 minutes. [7] 7. Method according to claim 1, characterized by the fact that the active cathode material is selected from the group consisting of LiNio, sMnogCoo ^ CL, LiNio, óMno ^ Coo ^ CL, LiNio, yMnojsCoo.isCh, LiNio, 8Mno, iCoo, i02, LiNio, 92Mno, the 4 Coo, the 4 02, LiNio, sCoo, 15Alo, 05O2, LÍN1O2, LiMnCL, LiMn2O 4 , Li2MnO3 and combinations thereof. [8] 8. Method according to claim 1, characterized in that the active cathode material comprises or is a core and shell composite that has a core and shell structure, wherein the core and shell each independently comprise a lithium transition metal oxide selected from the group consisting of Lii + x Ni a Mn b CocAl ( i_a-bc) O2, LiCoO 2 , LiNiO 2 , LiMnO 2 , LiMn 2 O 4 , Li 2 MnO 3 , LiCrCL, LÜT15O12, L1V2O5, LÍT1S2, L1M0S2 and combinations thereof; where -0.2 <x <0.2, 0 <a <l, 0 <b <l, 0 <c <le a + b + c <l. Petition 870190074557, of 8/2/2019, p. 72/75 [9] 9. Method according to claim 1, characterized in that the second suspension is homogenized by a planetary stirring mixer, a stirring mixer, a mixer or an ultrasonicator. [10] 10. Method according to claim 1, characterized by the fact that homogenization is carried out under vacuum at a pressure of 0.5 kPa to 10 kPa. [11] 11. Method according to claim 1, characterized by the fact that the second suspension is homogenized for 0.5 hour to 6 hours. [12] Method according to claim 1, characterized in that the second suspension is homogenized for a period of time of less than 3 hours, less than 2 hours or less than 1 hour. [13] 13. Method according to claim 1, characterized by the fact that the viscosity of the homogenized slurry is from 1,000 mPa · s to 6,000 mPa-s. [14] Method according to claim 1, characterized in that the solid content of the homogenized slurry is 30% to 60% by weight, based on the total weight of the homogenized slurry. [15] 15. Method according to claim 1, characterized in that the homogenized slurry is applied to the current collector through the use of a scraper blade coater, a grooved die coater, a transfer coater or a coater by spray. [16] 16. Method according to claim 1, characterized in that the coated film is dried by a hot air conveyor drying oven, a resistance conveyor drying oven, an inductive conveyor drying oven or an oven microwave drying. [17] 17. Method according to claim 1, characterized by the Petition 870190074557, of 8/2/2019, p. 73/75 [18] 18. Method according to claim 1, characterized in that the total processing time for steps 3) to 6) is less than 5 hours or less than 3 hours. Petition 870190074557, of 8/2/2019, p. 74/75
类似技术:
公开号 | 公开日 | 专利标题 BR112018014186B1|2019-09-17|METHOD FOR PREPARING A CATHOD AU2017352947B2|2021-11-04|Method of preparing battery anode slurries TW201820688A|2018-06-01|Cathode slurry for lithium ion battery WO2021184535A1|2021-09-23|Cathode and cathode slurry for secondary battery WO2020248188A1|2020-12-17|Method of preparing cathode for secondary battery WO2021185183A1|2021-09-23|Cathode and cathode slurry for secondary battery
同族专利:
公开号 | 公开日 AU2016387660B2|2019-09-12| CA3009357A1|2018-07-19| US20180323421A1|2018-11-08| KR102135603B1|2020-07-20| AU2018207704B2|2018-10-18| TWI678834B|2019-12-01| JP2019507464A|2019-03-14| AU2016387660C1|2020-02-27| DK3375028T3|2020-05-25| CA3009357C|2019-03-26| EP3375028A1|2018-09-19| US20170207443A1|2017-07-20| JP6547071B2|2019-07-17| SG11201913493RA|2020-01-30| WO2017124859A1|2017-07-27| US20170207441A1|2017-07-20| CN108701815A|2018-10-23| TWI640119B|2018-11-01| MX2018008224A|2018-09-18| JP2019503052A|2019-01-31| TW201727976A|2017-08-01| US10361423B2|2019-07-23| EP3836253A1|2021-06-16| CN107431193A|2017-12-01| BR112018012420A2|2018-12-18| CA3006869A1|2017-07-27| HK1256006B|2020-06-05| KR20180102100A|2018-09-14| BR112018012420B1|2020-02-11| EP3408883A1|2018-12-05| KR20200007104A|2020-01-21| CN108701815B|2019-09-17| ES2788425T3|2020-10-21| CN107431193B|2021-05-04| MX2018008225A|2018-09-18| AU2018207704A1|2018-08-16| KR102068243B1|2020-01-20| MX368763B|2019-10-15| TW201826597A|2018-07-16| EP3375028B1|2020-04-08| HK1243550A1|2018-07-13| ES2788425T8|2020-12-09| CA3006869C|2020-05-26| KR101957872B1|2019-03-13| WO2018130122A1|2018-07-19| KR20180091092A|2018-08-14| BR112018012420B8|2020-09-15| HK1257073A1|2019-10-11| US20170207442A1|2017-07-20| EP3408883A4|2019-09-11| BR112018014186A2|2018-11-06| CN107342392A|2017-11-10| EP3375028A4|2019-02-06| HK1251808A1|2019-03-22| CN107342392B|2021-03-09| AU2016387660A1|2018-08-16| SG10202013263PA|2021-01-28| PL3375028T3|2020-08-10| US9991504B2|2018-06-05| JP6668486B2|2020-03-18| SG11201911711WA|2020-01-30|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 JP3654005B2|1998-09-18|2005-06-02|新神戸電機株式会社|Method for producing positive electrode plate for lithium ion secondary battery| JP2003017054A|2001-06-29|2003-01-17|Sony Corp|Positive electrode active material, and manufacturing method of non-aqueous electrolyte battery| CN1227757C|2002-11-28|2005-11-16|宁波华天锂电池科技有限公司|Process for making electrode binding sizing agent of lithium ion secondary cell| JP2004342519A|2003-05-16|2004-12-02|M & G Eco Battery Institute Co Ltd|Battery using paste type thin electrode and its manufacturing method| JP2004355996A|2003-05-30|2004-12-16|Hitachi Maxell Ltd|Manufacturing method of positive electrode for non-aqueous secondary battery| KR100502357B1|2003-08-29|2005-07-20|삼성에스디아이 주식회사|Positive electrode having polymer film and lithium-sulfer battery employing the positive electrode| JP4608862B2|2003-09-05|2011-01-12|日本ゼオン株式会社|Method for producing slurry composition for lithium ion secondary battery electrode| US7662516B2|2004-06-07|2010-02-16|Panasonic Corporation|Electrode plate of positive electrode for non-aqueous electrolyte secondary battery and manufacturing method thereof| CN100420071C|2005-02-04|2008-09-17|比亚迪股份有限公司|Cell positive electrode and lithium ion cell adopting said positive electrode and preparing method| JP5008850B2|2005-09-15|2012-08-22|住友電工ファインポリマー株式会社|Tetrafluoroethylene resin molded body, stretched tetrafluoroethylene resin molded body, manufacturing method thereof, composite, filter, impact deformation absorbing material, and sealing material| JP2007176767A|2005-12-28|2007-07-12|Toray Ind Inc|Purifying method for composition containing carbon nanotube| JP2009032656A|2007-02-28|2009-02-12|Sanyo Electric Co Ltd|Method of manufacturing active material for lithium secondary battery, method of manufacturing electrode for lithium secondary battery, method of manufacturing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery| CA2622675A1|2007-02-28|2008-08-28|Sanyo Electric Co., Ltd.|Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery| JP5153200B2|2007-04-27|2013-02-27|三洋電機株式会社|Non-aqueous electrolyte secondary battery and manufacturing method thereof| JP2009064564A|2007-09-04|2009-03-26|Sanyo Electric Co Ltd|Manufacturing method for positive electrode for nonaqueous electrolyte battery, slurry used for the method, and nonaqueous electrolyte battery| TWI466370B|2008-01-17|2014-12-21|A123 Systems Inc|Mixed metal olivine electrode materials for lithium ion batteries| JP4636341B2|2008-04-17|2011-02-23|トヨタ自動車株式会社|Lithium secondary battery and manufacturing method thereof| US8859145B2|2008-05-23|2014-10-14|The Gillette Company|Method of preparing cathode containing iron disulfide for a lithium cell| US9240583B2|2008-11-26|2016-01-19|Nippon Paper Industries Co., Ltd.|Carboxymethylcellulose or salt thereof for electrodes of nonaqueous electrolyte secondary battery and aqueous solution thereof| JP5417441B2|2009-06-09|2014-02-12|シャープ株式会社|Redox flow battery| DE102009027446A1|2009-07-03|2011-01-05|Evonik Degussa Gmbh|Modified polyolefins with a particular property profile, process for their preparation and their use| US20120225199A1|2010-02-05|2012-09-06|International Battery, Inc.|Current collector coating for li-ion battery cells using aqueous binder| GB201005979D0|2010-04-09|2010-05-26|Nexeon Ltd|A method of fabricating structured particles composed of silicon or a silicon-based material and their use in lithium rechargeable batteries| WO2011140150A1|2010-05-03|2011-11-10|Georgia Tech Research Corporation|Alginate-containing compositions for use in battery applications| US9435585B2|2010-07-23|2016-09-06|Kwok Fai Lam|Microwave dryer and microwave drying method| KR20130143551A|2010-09-30|2013-12-31|아사히 가라스 가부시키가이샤|Positive electrode material mixture for nonaqueous secondary cell, and positive electrode for nonaqueous secondary cell and secondary cell using the same| US7931985B1|2010-11-08|2011-04-26|International Battery, Inc.|Water soluble polymer binder for lithium ion battery| KR101350811B1|2010-11-17|2014-01-14|한양대학교 산학협력단|Positive active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same| US20120064407A1|2011-04-14|2012-03-15|International Battery, Inc.|Polymer acids as ph-reducing binder or agent for aqueous lithium-ion batteries| GB2493375A|2011-08-03|2013-02-06|Leclancha S A|Aqueous slurry for battery electrodes| US8956688B2|2011-10-12|2015-02-17|Ut-Battelle, Llc|Aqueous processing of composite lithium ion electrode material| JP6070570B2|2011-11-29|2017-02-01|日本ゼオン株式会社|Lithium ion secondary battery electrode, lithium ion secondary battery and slurry composition, and method for producing lithium ion secondary battery electrode| US20130183579A1|2012-01-17|2013-07-18|Seung-Mo Kim|Positive active material for rechargeable lithium battery and rechargeable lithium battery including the same| JP5899945B2|2012-01-17|2016-04-06|三菱レイヨン株式会社|Method for producing positive electrode slurry for secondary battery, method for producing positive electrode for secondary battery, and method for producing lithium ion secondary battery| US20150010460A1|2012-02-27|2015-01-08|Sumitomo Bakelite Co., Ltd.|Method of producing carbon material for lithium ion secondary battery negative electrode, mixture for lithium ion secondary battery negative electrode, lithium ion secondary battery negative electrode, and lithium ionsecondary battery| CN102610830B|2012-03-26|2015-03-04|龙能科技（苏州）有限公司|Lithium ion battery| JP5630669B2|2012-06-29|2014-11-26|トヨタ自動車株式会社|Lithium secondary battery| JP5783425B2|2012-08-08|2015-09-24|トヨタ自動車株式会社|Method for producing non-aqueous electrolyte secondary battery| US10839227B2|2012-08-29|2020-11-17|Conduent Business Services, Llc|Queue group leader identification| JP5838934B2|2012-08-30|2016-01-06|株式会社デンソー|Method for producing positive electrode active material for non-aqueous electrolyte secondary battery| CN103715429B|2012-09-28|2016-04-27|王复民|Lithium battery| US10014518B2|2012-12-28|2018-07-03|Johnson Controls Technology Company|Cathode formed using aqueous slurry| KR102038620B1|2013-03-26|2019-10-30|삼성전자주식회사|Anode, lithium battery comprising anode, and preparation method thereof| CN105247716B|2013-05-15|2017-09-19|日本瑞翁株式会社|Lithium ion secondary battery positive electrode binding material composition, lithium ion secondary battery positive electrode paste compound and its manufacture method, the manufacture method of lithium ion secondary battery anode and lithium rechargeable battery| US9368831B2|2013-06-10|2016-06-14|Nanotek Instruments, Inc.|Lithium secondary batteries containing non-flammable quasi-solid electrolyte| US9671214B2|2013-07-17|2017-06-06|Infineon Technologies Ag|Discrete magnetic angle sensor device, a magnetic angle sensor arrangement, a method for generating an angle signal and a method for providing a sensor signal| CN103400978A|2013-08-01|2013-11-20|奇瑞汽车股份有限公司|Method for modifying lithium nickel manganese oxide material, lithium nickel manganese oxide material and lithium ion battery| EP3032619B1|2013-08-08|2019-10-09|Industry-Academia Cooperation Group of Sejong University|Cathode material for lithium secondary battery, and lithium secondary battery containing same| JP5806271B2|2013-09-24|2015-11-10|株式会社豊田自動織機|Negative electrode active material and power storage device| CN103618063B|2013-09-26|2016-05-11|奇瑞新能源汽车技术有限公司|A kind of lithium ion power battery cathode slurry and close paste-making method| CN103545527B|2013-10-31|2015-08-05|河北洁神新能源科技有限公司|A kind of cell size dispersant, Preparation method and use| CN203731822U|2013-12-24|2014-07-23|湖南兴瑞新材料研究发展有限公司|Microwave drying machine for drying lithium battery positive electrode material| KR102152367B1|2014-01-24|2020-09-04|삼성에스디아이 주식회사|Method for manufacturing composite positive active material, composite positive active material obtained thereby, positive electrode and lithium battery containing the material| US9882198B2|2014-02-04|2018-01-30|The Regents Of The University Of Michigan|High performance lithium battery electrodes by self-assembly processing| CN103887556B|2014-03-13|2015-08-19|深圳格林德能源有限公司|A kind of power energy storage polymer Li-ion battery and preparation method| KR101613606B1|2014-06-13|2016-04-20|한양대학교 산학협력단|Gas-generating Nanoparticle| US9335989B2|2014-07-13|2016-05-10|International Business Machines Corporation|Building a pattern to define a topology and application environment using software components and software updates/fixes from external repositories from multiple vendors| US20160019734A1|2014-07-15|2016-01-21|Lear Corporation|Hands-free trunk release and vehicle entry| US9578070B2|2014-07-17|2017-02-21|Cellco Partnersip|Method for inserting background audio into voice/video call| US9460577B2|2014-07-17|2016-10-04|Hyundai Motor Company|Sharing a key for a vehicle| KR101798276B1|2014-08-29|2017-11-15|주식회사 엘지화학|Battery module| JP5835446B1|2014-10-28|2015-12-24|住友大阪セメント株式会社|Positive electrode material, method for producing positive electrode material, positive electrode and lithium ion battery| CN105261753A|2015-08-31|2016-01-20|无锡市嘉邦电力管道厂|Water-based cathode slurry for lithium-ion battery and preparation method of water-based cathode slurry| US10361423B2|2016-01-18|2019-07-23|Grst International Limited|Method of preparing battery electrodes| CN105762353A|2016-04-08|2016-07-13|远东福斯特新能源有限公司|Lithium-ion battery with high-nickel ternary aqueous positive electrode and preparation method thereof| CN105932226B|2016-05-19|2018-11-13|宁德时代新能源科技股份有限公司|A kind of drying means of battery pole piece| CN106299280B|2016-08-31|2020-05-19|中航锂电（洛阳）有限公司|Preparation method of high-capacity lithium ion battery anode slurry|KR20170042281A|2014-08-08|2017-04-18|스미토모덴키고교가부시키가이샤|Positive electrode for sodium ion secondary battery, and sodium ion secondary battery| US10361423B2|2016-01-18|2019-07-23|Grst International Limited|Method of preparing battery electrodes| US10199635B2|2016-09-22|2019-02-05|Grst International Limited|Method of drying electrode assemblies| CN107579247B|2017-09-17|2021-09-28|泰州飞荣达新材料科技有限公司|Graphene composite lithium cobaltate positive electrode material and preparation method thereof| CN107819096A|2017-10-12|2018-03-20|合肥国轩高科动力能源有限公司|A kind of preparation method of the improved-type ternary lithium ion battery of normal temperature circulation| KR20190043016A|2017-10-17|2019-04-25|삼성전자주식회사|Drainage structure and electronic device with the same| WO2019078672A2|2017-10-20|2019-04-25|주식회사 엘지화학|Method for producing positive electrode active material for secondary battery, and secondary battery using same| US20190190060A1|2017-12-19|2019-06-20|3M Innovative Properties Company|Electrochemical cells| CN108371951A|2017-12-27|2018-08-07|浙江笨鸟科技有限公司|A kind of mesoporous support type air cleaning catalyst and preparation method thereof| CN108258334B|2018-01-19|2020-11-24|北京大学深圳研究生院|Composite flexible electrode, preparation method and application thereof| CN108321376B|2018-02-08|2020-05-22|合肥工业大学|N-doped porous carbon nanofiber @ tin dioxide lithium ion battery cathode material and preparation method thereof| CN111788723A|2018-02-26|2020-10-16|尤米科尔公司|Positive electrode slurry for lithium ion battery| CN108417800B|2018-03-07|2021-01-12|深圳市本征方程石墨烯技术股份有限公司|Graphene-coated graphite/metal composite powder negative electrode material and preparation method thereof| CN108545783A|2018-04-03|2018-09-18|兰州金川新材料科技股份有限公司|A kind of preparation method for lithium ion cell anode material lithium cobaltate| CN108554434B|2018-04-16|2021-03-30|复旦大学|Metal @ graphitized carbon/graphene composite electrocatalyst material and preparation method thereof| PL3567658T3|2018-05-09|2021-06-14|Haldor Topsøe A/S|Doped lithium positive electrode active material and process for manufacture thereof| CN108878821A|2018-06-19|2018-11-23|合肥国轩高科动力能源有限公司|A kind of nickelic tertiary cathode material and preparation method thereof of surface cladding lanthana| CN108878767A|2018-06-22|2018-11-23|中航锂电（江苏）有限公司|A kind of high capacity lithium ion battery anode sizing agent and its preparation method and application| CN108832111B|2018-06-26|2020-06-23|西南交通大学|LiNi0.8Co0.15Al0.05O2Positive electrode material and preparation method thereof| CN108842303B|2018-06-27|2020-12-22|华南理工大学|Boehmite/polyacrylonitrile composite nanofiber membrane as well as preparation method and application thereof| CN110184456A|2018-07-24|2019-08-30|重庆东群科技有限公司|A kind of low-grade utilization method containing zinc ore crude| DE102018128902A1|2018-08-08|2020-02-13|VON ARDENNE Asset GmbH & Co. KG|method| CN109161425B|2018-08-14|2021-09-28|奇瑞汽车股份有限公司|Lubricating oil additive and preparation method thereof| CN109179512B|2018-09-13|2020-12-08|郑忆依|Treatment method of lithium iron phosphate waste| CN109301207B|2018-09-27|2021-06-15|北京理工大学|Surface layer doped with Ce3+And the surface layer is coated with CeO2NCM ternary cathode material and preparation method thereof| CN110970619B|2018-09-30|2021-09-14|山东欧铂新材料有限公司|Method for preparing graphene nanosheet by physical stripping method, aqueous conductive slurry for lithium ion battery cathode and preparation method of aqueous conductive slurry| US10777843B2|2018-10-31|2020-09-15|Nissan North America, Inc.|Regenerated lithium-ion cathode materials having modified surfaces| CN109465009A|2018-11-01|2019-03-15|深圳永清水务有限责任公司|Catalyst and its preparation method and application for catalytic wet hydrogen peroxide oxidation method| CN109686979B|2018-12-12|2021-07-06|陕西煤业化工技术研究院有限责任公司|Silicon-carbon anode material slurry and preparation method thereof| CN109704414A|2018-12-19|2019-05-03|河北省科学院能源研究所|A kind of preparation method of the nickel cobalt lithium aluminate cathode material of cation doping| CN109704415A|2018-12-26|2019-05-03|惠州亿纬锂能股份有限公司|A kind of lithium-rich manganese-based presoma, and preparation method thereof and lithium-rich manganese-based anode material| CN109888287A|2019-01-25|2019-06-14|浙江野马电池股份有限公司|A kind of alkaline Mn cell cathode additive agent containing wetting dispersing agent| CN109698040B|2019-01-29|2020-09-22|西安工程大学|Water-based electronic paste and preparation method thereof| JP2020123526A|2019-01-31|2020-08-13|三洋電機株式会社|Non-aqueous electrolyte secondary battery and manufacturing method for electrode thereof| CN109921010A|2019-03-12|2019-06-21|四川纳创时代新能源科技有限公司|A kind of magnesium elements doping nickelic ternary material of NCM622 type and preparation method thereof| CN109841822A|2019-03-19|2019-06-04|中南大学|A kind of preparation method of the modified monocrystalline tertiary cathode material of lithium ion battery| CN110112375B|2019-03-22|2021-07-30|南京大学|Double-transition metal manganese-based layered positive electrode material of sodium ion battery| CN110157932B|2019-04-15|2020-09-22|中国航发北京航空材料研究院|Preparation method of graphene modified copper-based electrical contact material based on in-situ synthesis| CN110148751B|2019-06-19|2021-01-12|桑德新能源技术开发有限公司|Silicon-carbon cathode and preparation method thereof| CN110436427B|2019-07-05|2021-01-08|合肥国轩高科动力能源有限公司|Preparation method of composite structure ferric orthophosphate for high-capacity high-compaction lithium iron phosphate| US11108048B2|2019-07-31|2021-08-31|Ford Global Technologies, Llc|Anode binder composition for lithium ion battery performance| CN110571422A|2019-09-16|2019-12-13|广州鹏辉能源科技股份有限公司|Modified high-nickel anode material and preparation method thereof, high-nickel anode slurry, battery cell, lithium ion battery and power utilization equipment| CN110783552B|2019-11-25|2022-02-15|华南理工大学|Carbon-coated titanium-doped tin dioxide material and preparation method and application thereof| CN111082023B|2019-12-30|2021-07-20|山东精工电子科技有限公司|Preparation method and application of positive electrode material with high-conductivity tubular network structure| CN112673493A|2020-03-20|2021-04-16|广东省皓智科技有限公司|Method for preparing cathode of secondary battery| WO2021184392A1|2020-03-20|2021-09-23|Guangdong Haozhi Technology Co. Limited|Method of preparing cathode for secondary battery| GB202004492D0|2020-03-27|2020-05-13|Johnson Matthey Plc|Cathode material and process| CN111362369B|2020-03-31|2021-02-19|南京理工大学|Lead dioxide-carbon nano tube adsorptive submicron electrochemical reactor and preparation method and application thereof| CN111900391B|2020-06-19|2022-01-11|温州大学新材料与产业技术研究院|Lithium ion battery cathode slurry and preparation method thereof| CN111900508A|2020-07-30|2020-11-06|安徽绿沃循环能源科技有限公司|Method for recycling decommissioned ternary batteries| CN112072106A|2020-08-28|2020-12-11|浙江大学|Conductive adhesive material, preparation method thereof, negative electrode plate and lithium ion battery| JP6870769B1|2020-08-31|2021-05-12|日本ゼオン株式会社|Conductive material dispersion for electrochemical elements, slurry composition for electrochemical element electrodes and manufacturing method thereof, electrodes for electrochemical elements, and electrochemical elements| CN112382752A|2020-11-04|2021-02-19|广州汽车集团股份有限公司|High-nickel ternary aqueous positive electrode slurry, preparation method, positive plate, lithium ion battery cell, lithium ion battery pack and application thereof| CN112447961B|2020-12-12|2021-11-09|安徽嘉誉伟丰机电科技股份有限公司|Preparation method of high-specific-capacity lithium battery positive electrode material| CN113036090A|2021-03-15|2021-06-25|上海大学|Oxide-modified ternary positive electrode material, preparation method thereof and secondary battery| CN113130878A|2021-04-02|2021-07-16|中北大学|Preparation method and application of boron-doped silicon-based negative electrode material|
法律状态:
2019-06-04| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]| 2019-09-03| B09A| Decision: intention to grant [chapter 9.1 patent gazette]| 2019-09-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/01/2018, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/01/2018, OBSERVADAS AS CONDICOES LEGAIS |
优先权:
[返回顶部]
申请号 | 申请日 | 专利标题 US201662279841P| true| 2016-01-18|2016-01-18| US15/404,227|US9991504B2|2016-01-18|2017-01-12|Method of preparing cathode for secondary battery| US15/404,227|2017-01-12| PCT/CN2018/071679|WO2018130122A1|2016-01-18|2018-01-05|Method of preparing cathode for secondary battery| 相关专利
Sulfonates, polymers, resist compositions and patterning process
Washing machine
Washing machine
Device for fixture finishing and tension adjusting of membrane
Structure for Equipping Band in a Plane Cathode Ray Tube
Process for preparation of 7 alpha-carboxyl 9, 11-epoxy steroids and intermediates useful therein an
国家/地区
|