• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    ELECTROLYTE SOLUTION ADDITIVE FOR LITHIUM SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY INCLUDING THE ADDITIVE. A non-aqueous electrolyte solution is provided comprising a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalate)phosphate (LiDFOP), (trimethylsilyl)phosphate )propyl (TMSPa), 1,3-propene sultan (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive. According to the electrolyte solution additive for a lithium secondary battery of the present invention, the electrolyte solution additive can improve the production characteristics at high and low temperature and can prevent swelling phenomenon by suppressing the decomposition of PF6- on the surface of a cathode, which can occur during a high temperature cycle of a secondary lithium battery, including the electrolyte solution additive, and prevent an oxidation reaction of an electrolyte solution.
    公开号:BR112015002817B1
    申请号:R112015002817-9
    申请日:2014-10-31
    公开日:2021-05-25
    发明作者:Gwang Yeon Kim；Chul Haeng Lee；Doo Kyung Yang；Young Min Lim；Shul Kee Kim；Yu Ha An；Jin Hyun Park
    申请人:Lg Chem, Ltd；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [001] The present invention relates to an electrolyte solution additive including four types of compounds, a non-aqueous electrolytic solution including the electrolytic solution additive, and a lithium secondary battery including the non-aqueous electrolytic solution. BACKGROUND OF THE TECHNIQUE
    [002] The demand for secondary batteries as a power source has. has been significantly increased as technology development and demand with respect to mobile devices has increased. Among these secondary batteries, lithium secondary batteries with high energy density and high voltage have been commercialized and widely used.
    [003] An oxide of lithium metal is used as an active material for the cathode of a secondary lithium battery, and lithium metal, an alloy of lithium, crystalline or amorphous carbon, or a carbon composite is used as an active material of the lithium metal. anode. A current collector can be coated with the active material of suitable thickness and length or the active material itself can be coated: in the form of a. film, and the resulting product is then rolled or stacked with an insulating separator to prepare a group of. electrodes. After that, the electrode group is placed inside a can or similar container, and a secondary battery is then prepared by
    [004] The secondary lithium battery charging and discharging is performed while a process of intercalation and deinterleaving of lithium ions from a lithium metal oxide cathode inside and outside a graphite anode is repeated. In this case, since lithium is highly reactive, lithium reacts with the carbon electrode to form LijCOj-, LiO, or L1O.H. Thus, a film can be formed on the anode surface. The film is denoted as "solid electrolyte interface (SEI)".
    [005] The SEI formed at an early stage of charging can prevent a reaction of lithium ions with the carbon anode or other materials during charging and discharging. In addition, SEI only lets lithium ions through, acting as an ion tunnel. The ion tunnel can prevent the destruction of a carbon anode structure, due to the co-interleaving of the carbon anode and organic solvents of an electrolytic solution having a high molecular weight that solvates lithium ions and moves with them.
    [006] Therefore, in order to improve the high-temperature cycle and low-temperature production characteristics of the lithium secondary battery, a robust SEI must be formed at the anode of the lithium secondary battery. When the SEI is once formed during the first charge, the SEI can prevent the reaction of lithium ions with the anode or other materials during the repeated charge and discharge cycles caused by later battery usage, and can act as a ion tunnel that allows only lithium ions to pass between the electrolytic solution and the anode.
    [007] Typically, with respect to an electrolyte solution that does not include an electrolyte solution additive or includes an electrolyte solution additive with poor characteristics, the improvement of low temperature production characteristics cannot be expected due to non-forming SEI uniform. Furthermore, even in the case where the electrolytic solution additive is included, robust SEI may not be formed at the anode when the inlet of the same is not adjusted to a required amount. Thus, a swelling phenomenon, in which the anode is swollen by reaction with an electrolytic solution, may occur as a side reaction, or gas generation may be increased due to decomposition of the electrolytic solution, and the rate of charge and discharge may be increased. be diminished. DISCLOSURE OF THE INVENTION TECHNICAL PROBLEM
    [008] The present invention is provided to solve the technical problems of the related technique.
    [009] The inventors of the present application have recognized that the production characteristics are improved in the case where an electrolytic solution for a secondary lithium battery includes four types of additives, thus leading to the completion of the present invention. TECHNICAL SOLUTION
    [010] In accordance with one aspect of the present invention, there is provided a non-aqueous electrolyte solution comprising a non-aqueous organic solvent; an imide-based lithium salt; and at least one additive selected from the group consisting of lithium difluoro bis(oxalate)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRSj, and ethylene sulfate (ESa) ), as an electrolytic solution additive.
    [011] The imide-based lithium salt may be Li(SO2F)-N(lithium bisIfluorosulfonyl)imide, LiFSl), the non-aqueous organic solvent may include dimethyl carbonate (DMC), ethyl triethyl carbonate (EMC), ethylene carbonate (EC), and propylene carbonate (PC.' ), and the additive may include lithium difluoro bis(oxalate)phosphate (LiBFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1, 3-propene sultone (PRS), and ethylene sulfate (ESa). In addition, the lithium salt may also include LIPFÊ.
    [012] In accordance with another aspect of the present invention, a lithium secondary battery is provided, including: a cathode; an anode; and the non-aqueous electrolytic solution. ADVANTAGEOUS EFFECTS
    [013] According to an electrolytic solution additive for a secondary lithium battery of the present invention, the electrolytic solution additive can improve the production characteristics at high and low temperatures and can prevent a swelling phenomenon by suppressing the decomposition of PF6 ' on the surface of a cathode, which can occur during a high temperature cycle of a secondary lithium battery, including the electrolytic solution additive, and prevent an oxidation reaction of an electrolytic solution. BRIEF DESCRIPTION OF THE DRAWINGS
    [014] Figure 1 is a graph illustrating the production characteristics after high temperature storage of Example 1 and Comparative Examples 1 and 2;
    [015] Figure 2 is a graph illustrating thickness variations after high temperature storage of Example 1 and Comparative Examples 1 and 2; and
    [016] Figure 3 is a graph illustrating the low temperature production characteristics of Example 1 and Comparative Examples 1 and 2. METHOD FOR CARRYING OUT THE INVENTION
    [017] In the following, the present invention will be described in more detail to allow a clearer understanding of the present invention. It should be understood that words or terms used in the specification and claims should not be interpreted as defined in commonly used dictionaries. It will be further understood that words or terms are to be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the technical idea of the invention, based on the principle that the inventor can adequately define the meaning of the words or terms to better explain the invention,
    [018] One embodiment of the present invention provides a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one: additive selected from the group consisting of lithium difluoro bis(oxalate) phosphate (LiDFQP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolytic solution additive.
    [019] The imide-based lithium salt may be at least one selected from the group consisting of LitSO^FJrN, and according to an embodiment of the present invention, the imide-based lithium salt may be Li ( SO2F)-jN (lithium bis(fluorosulfonyl)imide, LiFSI).
    [020] The lithium salt, which may be included in the non-aqueous electrolyte solution according to the embodiment of the present invention, may also include LiPF.
    [021] um. Since LiFSI and LiPFE are combined, the reduction in battery output due to the low mobility of lithium ions caused by the high viscosity of LlPFfc at low temperature can be improved by the addition of LiFSI which. It can maintain a low viscosity even at low temperature.
    [022] LiFSI and LiPFε can be mixed in a molar ratio of LiFSI to LiPFs of 10:90 to 50:50. In the case where a trace amount of L1PF6 is included within the above range, the capacity of the formed battery may be low. In the case where an excessive amount of LiPFb is included, the low temperature viscosity increases to decrease the mobility of lithium ions. Thus, the output of the formed battery cannot be improved.
    [023] The additive may include at least one selected from the group consisting of lithium difluoro bis(axalato)phosphate (LiDFQP)., trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene. sultone (PRS), and ethylene sulfate (ESa). However, in accordance with one embodiment of the present invention, the additive may include four types, including lithium difluoro bis(oxalate]phosphate (LiDFOP), [tritπethylsi]propyl phosphate (TMSPa), 1,3-propene sultone (PRS) ), and ethylene sulfate (ESa).
    [024] In the case where the lithium salt is LiPFe, the electrolytic solution having insufficient thermal stability can be easily decomposed in the battery to form LiF and PF=. In this case, the LiF salt can reduce the conductivity and the number of free Li+ ions to increase the battery's resistance and, as a result, the battery capacity is reduced. That is, in the decomposition of PFg" ions on the surface of a cathode, which can occur during a high-temperature cycle, a (trimethylsilyl)propyl phosphate functional group or an ethylene sulfate functional group ( ESa) acts as an anion receptor to induce the stable formation of PFg” and increase the separation of Li+ and PFE ion pairs. As a result, the interfacial resistance can be reduced, improving the solubility of LiF in the electrolytic solution.
    [025] Furthermore, the LiDFOP additive can form a stable electrolyte solid interface (SEI) on an anode surface after a battery activation process to suppress the gas that is generated, due to decomposition, from the electrolytic solution caused by the reaction between the anode surface and the electrolytic solution in the battery. Thus, LiDFOP additive can improve the life characteristics of lithium secondary battery.
    [026] Here, the additives lithium difluoro bis(oxalate)phosphate (LiDFOP), 1,3-propene sultone (PRS), and ethylene sulfate (ESa) can each independently be included in an amount of 0. 5% by weight to 1.5% by weight, for example 0.5% by weight to 1.0% by weight based on a total amount of the electrolyte solution. In the case where each amount of the lithium difluoro ethylene sulfate (ESa} additives is less than 0.5% by weight, the effect of suppressing decomposition as an anion acceptor in a high temperature cycle may be negligible. Regarding LiDFQP additive, the formation of stable SEI on the anode surface cannot be achieved, and PRS additive cannot effectively suppress the gas generated from the electrolytic solution. In the case where each amount of additives is greater than 1, 5% by weight, the lithium ion permeability of the protective layer can be reduced to increase the impedance, and sufficient capacity and charging and discharging efficiency may not be obtained. In addition, the additive (trimethylsilyl)propyl phosphate (TMSPa) may be included in an amount from 0.1% by weight to 0.5% by weight based on the total amount of the electrolytic solution. In the case where the amount of the (trimethylsilyl)propyl phosphate additive (TMSPa) is less than 0 .1% by weight, since the entity is too small, LiPF decomposition; cannot be suppressed. In the case where the amount of the TMSα additive is greater than 0.5% by weight, the permeability of lithium ions can be reduced to increase the impedance, and sufficient capacity and charge-discharge efficiency cannot be obtained.
    [027] The non-aqueous electrolyte solution according to the embodiment of the present invention may include the additive solution electrolyte, the non-aqueous organic solvent, and the lithium salt.
    [028] In addition, the non-aqueous organic solvent, which can be included in the non-aqueous electrolytic solution, is not limited as long as it can minimize decomposition due to oxidation reaction during battery charging and discharging and may have desired characteristics with the additive. For example, the non-aqueous organic solvent may include carbonate-based compounds and propionate-based compounds. These compounds can be used alone or in combination of two or more of them.
    [029] Among the above non-aqueous organic solvents, carbonate-based organic solvents may include any selected from the group consisting of dimethyl carbonate (DMC), diethyl carbonate (DEC), dipropyl carbonate (DPC) , methyl propyl carbonate (MPC), ethyl propyl carbonate (EPC), ethyl methyl carbonate (EMC), ethylene carbonate (EC), propylene carbonate (PC), and butylene carbonate (BC), or a mixture of two or more of them. Examples of the propionate-based compounds may include any selected from the group consisting of ethyl propionate (EP), propyl propionate (PP), n-propyl propionate, isopropyl propionate, n-butyl propionate, isobutyl, and tert-butyl propionate, or a mixture of two or more thereof.
    [030] In accordance with an embodiment of the present invention, carbonate-based solvents can be used in combination with them. For example, an electrolytic solution including dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), ethylene carbonate (EC), and propylene carbonate (PC) can be used as the non-aqueous organic solvent.
    [031] As the four (4) types of electrolyte solutions, EC/PC/EMC/DMC can be respectively included in an amount of 1.0 part by weight to 1.5 part by weight: 1.0 part by weight weight: to 1.5 parts by weight:- 4.0 parts by weight to 4.5 parts by weight: and 4.0 parts by weight to 4.5 parts by weight. In accordance with one embodiment of the present invention, the EC/PC/EMC/DMC ratio expressed as parts by weight may be about 1:1:4:4.
    [032] In the case where the carbonate compounds are combined within the above weight ratio and used as the non-aqueous organic solvent, dimethyl carbonate (DMC) may particularly improve the performance of the lithium battery, but the gas may be generated during the secondary battery high temperature cycle. Thus, 1,3-propene sultone (PRSJ among the additives can improve secondary battery life characteristics by effectively suppressing the gas generated from DMC.
    [033] A lithium secondary battery in accordance with an embodiment of the present invention may include a cathode, an anode, a separator disposed between the cathode and the anode, and the non-aqueous electrolyte solution. The cathode and anode may include an active cathode material and an active anode material, respectively.
    [034] Here, the cathode active material may include a manganese-based spinel active material, lithium metal oxide, or a mixture thereof. Furthermore, lithium metal oxide can be selected from the group consisting of lithium-cobalt-based oxide, lithium-manganese-cobalt-based oxide, and lithium-nickel-manganese-cobalt-based oxide, and , for example, can include LiCo02, LiNiO-., LiMnO-, LiMntOq, Li (NÍ3CohMnJ O2 (where 0<a<l,0<c<l, and ad-bic = 1), LiNii-yCoYOs, LiCoi-yMnYOs , LiNij_çtónyOa (where O^Y<1), Li (Ni4CohMnc) O, (where 0<a<2, 0<b<2,0<c<2, and ã-frb+c = 21 , LlMn^- jNi-Oj, and LiMnj^Co-O' (where 0<z<2).
    [035] As the anode active material, a carbon-based anode active material, such as crystalline carbon, amorphous carbon and a carbon composite, or a graphite-based anode active material, such as graphite natural and artificial graphite, can be used alone or in a mixture of two or more of them.
    [036] In addition, a porous polymer film, for example, a porous polymeric film prepared from a polyolefin-based polymer, such as an ethylene homopolymer, a p.ropylene homopolymer, an ethylene copolymer /butene, an ethylene/hexene copolymer, and an ethylene/methacrylate copolymer, can be used alone or in a lamination of two or more of them as a separator. In addition, a typical porous nonwoven fabric, for example, a nonwoven fabric formed from high melting glass fibers, or polyethylene terephthalate fibers may be used. However, the separator is not limited to them.
    [037] The lithium secondary battery can be prepared by a typical method related to the present invention, and the lily secondary battery can be a bag-type secondary battery. Examples
    [038] Hereinafter, the present invention will be described in more detail, according to examples and experimental examples. However, the present invention is not limited thereto. Example 1[Electrolytic Solution Preparation]
    [039] A non-aqueous organic solvent mixed with a composition, in which a ratio of ethylene carbonate (EC): carbonate: propyl carbonate (PC): ethyl methyl carbonate (EMC): dimethyl carbonate (DMC) was 1.32 :1.20:4.08:4.26 (parts by weight], LiPF6 Δ75M and LiFSI 0.5M were mixed, and a non-aqueous electrolyte solution was then prepared by adding 1% by weight of lithium difluoro bis [oxalate]phosphate (LiDFOP) 0.2% by weight of [trimethylsilyl]propyl phosphate (TMSPa), 1% by weight of 1,3-propene sultone (PRS), and 1% by weight of ethylene sulfate (ESa), based on 100 parts by weight of the non-aqueous electrolyte solution thereof,[Preparation of Secondary Lithium Battery]
    [040] A cathode mixture suspension was prepared by adding 92% by weight LiCoO; as an active cathode material, 4% by weight of carbon black as a conductive agent, and 4% by weight of polyvinylidene fluoride (PVdF) as a linker for N-methyl-2-pyrrolidin [NMP] as a solvent. A thin film of aluminum (A1J about 20 µm thick as a cathode current collector was coated with the dry cathode mixture slurry, and the thin film of Al was then cylinder pressed to prepare a cathode. .
    [041] In addition, a suspension of the anode mixture was prepared by adding 96% by weight of artificial graphite as the active anode material, 3% by weight of PVdF as a binder, c-1% by weight of carbon black. as an MPN conducting agent as a solvent. A 10 µm thick copper (Cu) thin film as an anode current collector was coated with the anode mixture suspension and dried, and the Cu thin film was then cylinder pressed to prepare an anode. ,
    [042) A polymer-type battery was prepared by a typical method using a separator formed by three layers of polypropylene/polyethylene/polypropylene (PP/PE/PP) with the cathode and anode thus prepared, and a secondary battery was then completed by injection of the prepared non-aqueous electrolyte solution. Comparative Example 1
    [043] A lithium secondary battery was prepared in the same manner as in Example 1, except that only 1.0 M LiPE^ was used as the lithium salt. Comparative example 2
    [044] A lithium secondary battery was prepared in the same manner as in Example 1, except that 3 wt. 1% by weight of ethylene sulfate (ESa) was added as the additives based on the total weight of the non-aqueous electrolyte solution. Experimental Examples <Production characteristics after high temperature storage>
    [045] Despite the storage of the secondary batteries prepared in Example 1 and Example Comparatives 1 and 2 at 60°C for a maximum of 12 weeks, the outputs were calculated from the voltage differences that were obtained, respectively, by charging and discharging the secondary batteries in week 1r week 2Z week 3, week 4, week 8 , and week 12 at 5”c for 10 seconds at 23°C. The production capacity after high temperature storage of the secondary battery corresponding to each storage period was calculated as a percentage based on the initial production capacity (W, week 0] (output (W) of the corresponding week/initial output (W) * 100 (%) ), and its results are shown in Figure 1. The experiment was carried out at a state of charge [SOC] of 50%.
    [046] As illustrated in Figure 1, it can be understood that the secondary battery of Example 1 had excellent output characteristics even after high temperature storage at 6°F. In particular, since 4 types of additives of the present invention were not used in the secondary battery of Comparative Example 2, it can be understood that the production characteristics of the secondary battery of Comparative Example 2 after high temperature storage at 60°C were lower. (95%) than the initial value.<Battery Thickness Measurement>
    [047] Despite storage of the secondary batteries prepared in Example 1 and Comparative Examples 1 and 2 at 60°C for a maximum of 12 weeks, the rates of increase in thickness (%) of the secondary batteries based on an initial thickness (week 0) of the battery were measured at week 1, week 2, week. 3, weeks 4, weeks 8, and week 12. The results of these are shown in Figure 2 below.
    [048] As illustrated in Figure 2, it can be understood that the rate of increase in thickness of the secondary battery of Example 1 after high temperature storage was the lowest (20% at week 12). In particular, it can be understood that the secondary battery of Comparative Example 2 exhibited a rapid rate of increase in thickness from the onset of high temperature storage. Since the rate of increase in thickness of the secondary battery of Comparative Example 1 was also increased after 4 weeks, it can be confirmed that the secondary battery of Comparative Example 1 was less efficient than the secondary battery of Example 1 according to the embodiment of the present invention. Low Temperature Production Characteristics>
    [049] The outputs were calculated from voltage differences that were obtained by charging and discharging the secondary batteries prepared in Example 1 and Comparative Examples 1 and 2 at 0.5*0 for 10 seconds at -30°C. The respective results are shown in Figure 3. The experiment was carried out at a SQC of 50%.
    [050] As illustrated in Figure 3, it can be understood that the secondary battery of Example 1 exhibited low temperature output that was a maximum of 1.5 W higher than the secondary batteries of Comparative Examples 1 and 2,
    权利要求:
    Claims (12)
    [0001]
    1. Non-aqueous electrolytic solution, characterized in that it comprises: a non-aqueous organic solvent; an imide-based lithium salt; LiPF6; and additives comprising lithium difluorobis(oxalate)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa).
    [0002]
    2. Non-aqueous electrolytic solution according to claim 1, characterized in that the imide-based lithium salt comprises at least one selected from the group consisting of LiN(CF3SO2)2, LiN(C2F5SO2)2 , Li(CF3SO2)(C2F5SO2)N, and Li(SO2F)2N.
    [0003]
    3. Non-aqueous electrolytic solution according to claim 1, characterized in that the lithium salt based on the imide is Li(SO2F)2N (lithium bis(fluorosulfonyl)imide, LiFSI).
    [0004]
    4. Non-aqueous electrolytic solution according to claim 1, characterized in that the non-aqueous organic solvent comprises at least one selected from the group consisting of dimethyl carbonate (DMC), diethyl carbonate (DEC), dipropyl carbonate (DPC), methylpropyl carbonate (MPC), ethylpropyl carbonate (EPC), ethylmethyl carbonate (EMC), ethylene carbonate (EC), propylene carbonate (PC), and butylene carbonate (BC).
    [0005]
    5. Non-aqueous electrolytic solution according to claim 1, characterized in that the non-aqueous organic solvent comprises ethylene carbonate (EC), propylene carbonate (PC), ethylmethyl carbonate (EMC), and dimethyl carbonate (DMC).
    [0006]
    6. Non-aqueous electrolytic solution according to claim 5, characterized in that the non-aqueous organic solvent comprises ethylene carbonate (EC)/propylene carbonate (PC)/ethylmethyl carbonate (EMC)/dimethyl carbonate ( DMC), respectively, in an amount of 1.0 part by weight to 1.5 part by weight: 1.0 part by weight to 1.5 part by weight: 4.0 parts by weight to 4.5 parts by weight : and 4.0 parts by weight to 4.5 parts by weight.
    [0007]
    7. Non-aqueous electrolytic solution according to claim 1, characterized in that lithium difluoro bis(oxalate) phosphate (LiDFOP), 1,3-propene sultone (PRS), and ethylene sulfate (ESa) are each independently included in an amount of 0.5% by weight to 1.5% by weight based on a total amount of electrolyte solution, and (trimethylsilyl)propyl phosphate (TMSPa) is included in a amount from 0.1% by weight to 0.5% by weight based on the total amount of the electrolyte solution.
    [0008]
    8. Non-aqueous electrolytic solution according to claim 1, characterized in that the mixing ratio of the lithium salt to the imide base of LiPF6 is in a range from 10:90 to 50:50 as a molar ratio.
    [0009]
    9. Lithium secondary battery, characterized by the fact that it comprises: a cathode; an anode; a separator; and the non-aqueous electrolyte solution as defined in any one of claims 1 to 8.
    [0010]
    10. Secondary lithium battery according to claim 9, characterized in that the anode comprises a carbon-based anode active material selected from the group consisting of crystalline carbon, amorphous carbon, artificial graphite, and graphite Natural.
    [0011]
    11. Secondary lithium battery according to claim 9, characterized in that the cathode comprises a lithium metal oxide.
    [0012]
    12. Lithium secondary battery according to claim 9, characterized in that the lithium secondary battery is a lithium ion secondary battery or a lithium polymer secondary battery.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US7709157B2|2002-10-23|2010-05-04|Panasonic Corporation|Non-aqueous electrolyte secondary battery and electrolyte for the same|
    WO2007043624A1|2005-10-12|2007-04-19|Mitsui Chemicals, Inc.|Nonaqueous electrolyte solution and lithium secondary battery using same|
    KR101342509B1|2007-02-26|2013-12-17|삼성에스디아이 주식회사|Lithium secondary battery|
    US8715865B2|2007-07-11|2014-05-06|Basf Corporation|Non-aqueous electrolytic solutions and electrochemical cells comprising the same|
    JP2011517042A|2008-04-08|2011-05-26|エルジー・ケム・リミテッド|Non-aqueous electrolyte for lithium secondary battery and lithium secondary battery provided with the same|
    KR101099973B1|2008-04-08|2011-12-28|주식회사 엘지화학|Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same|
    WO2010030008A1|2008-09-11|2010-03-18|日本電気株式会社|Secondary battery|
    JP2010277827A|2009-05-28|2010-12-09|Sony Corp|Nonaqueous electrolyte, positive electrode, and nonaqueous electrolyte secondary battery using the nonaqueous electrolyte and the positive electrode|
    KR101233325B1|2011-04-11|2013-02-14|로베르트 보쉬 게엠베하|Electrolyte for rechargeable lithium battery and rechargeable lithium battery inclduing same|
    JP5988134B2|2011-05-11|2016-09-07|株式会社Ｇｓユアサ|Electricity storage element|
    JP5796417B2|2011-08-31|2015-10-21|セントラル硝子株式会社|Non-aqueous electrolyte battery electrolyte and non-aqueous electrolyte battery|
    KR20140116154A|2011-12-28|2014-10-01|우베 고산 가부시키가이샤|Non-aqueous electrolyte and electrical storage device using same|
    JPWO2013128679A1|2012-02-29|2015-07-30|新神戸電機株式会社|Lithium ion battery|JP6376454B2|2014-08-28|2018-08-22|株式会社Ｇｓユアサ|Power storage device and method for manufacturing power storage device|
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    US11251432B2|2016-02-12|2022-02-15|Samsung Sdi Co., Ltd.|Lithium battery|
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    US11145900B2|2016-02-12|2021-10-12|Samsung Sdi Co., Ltd.|Lithium battery|
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    US10897062B2|2016-06-13|2021-01-19|Nec Corporation|Lithium ion secondary battery|
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    JP6818723B2|2018-09-25|2021-01-20|太陽誘電株式会社|Electrolyte for electrochemical devices and electrochemical devices|
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    法律状态:
    2018-02-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-22| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-04-13| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-25| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/10/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-11-16| B16D| Grant of patent or certificate of addition of invention cancelled|Free format text: ANULADA A PUBLICACAO CODIGO 16.1 NA RPI NO 2629 DE 25/05/2021 POR TER SIDO INDEVIDA. |
    2021-11-23| B09X| Republication of the decision to grant [chapter 9.1.3 patent gazette]|
    2021-12-07| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/10/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    KR20130131464|2013-10-31|
    KR10-2013-0131464|2013-10-31|
    KR10-2014-0149502|2014-10-30|
    KR1020140149502A|KR101620214B1|2013-10-31|2014-10-30|Additive for non-aqueous liquid electrolyte, non-aqueous liquid electrolyte and lithium secondary battery comprising the same|
    PCT/KR2014/010350|WO2015065093A1|2013-10-31|2014-10-31|Electrolyte additive for lithium secondary battery, non-aqueous electrolyte comprising electrolyte additive, and lithium secondary battery|
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