• 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:
    secondary battery pack featuring innovative structure. this report describes a secondary battery pack including an anodic terminal and a cathodic terminal of a battery element, with the anodic and cathodic terminals being made of a conductive plate-shaped component, with the anodic terminal and the cathodic terminal being connected electrically to a protection circuit module (pcm), with the battery element having the anode terminal and the cathode terminal formed at one end, with the battery element being provided at one end with a portion of excess thermally welded, and a pcm including a printed circuit board (pcb) showing a protection circuit formed on it, the pcb being provided next to one of its sides containing a cathode terminal connection portion and an anode terminal connection portion and joins another one of its sides containing a connection portion of the external input and output terminal, with the terminal external input and output terminal connected electrically to the pcb protection circuit via the connection portion of the external input and output terminal of the pcb, and an electrically insulated pcm compartment, where the pcb 200 comes to be installed in an insertion mode, with the pcb being loaded into the thermally welded excess portion of the battery element in a direction where the pcb faces an upper end of the main element of the battery element.
    公开号:BR102012013186B1
    申请号:R102012013186
    申请日:2012-05-31
    公开日:2020-04-07
    发明作者:Gu Yun Hyung；Woon Choi Jong；Hyuk Park Sang
    申请人:Lg Chemical Ltd；
    IPC主号:
    专利说明:

    “SECONDARY BATTERY SET AND METHOD OF MANUFACTURING THE SAME”
    Technical Field:
    The present invention relates to a secondary battery pack having an innovative structure, and more particularly, to a secondary battery pack with the inclusion of an anodic terminal and a cathodic terminal pertinent to a battery element, with the anodic and cathodic terminal being formed from a conductive plate-shaped component, with the anode terminal and the cathode terminal being electrically connected together with a protection circuit module (PCM), with the battery element showing the anode terminal and the cathode terminal formed next to one of its ends, with the battery element being provided next to one of its ends with a portion of thermally welded excess, and a PCM including a printed circuit board (PCB) containing a protection circuit formed on it, and the PCB being provided next to its side containing a cathode terminal connection portion and a connection portion anodic terminal block and on the other side of the terminal containing an external input and output terminal connection portion, with the external input and output terminal electrically connected to the PCB protection circuit via the external terminal connection portion of entry and exit of the PCB, and with an electrically insulated PCM compartment, where the PCB 200 is installed in insertion mode, with the PCB being loaded next to the thermally welded excess portion of the battery element in a direction where the PCB confronts an upper end of the main body of the battery element.
    Technical Basics:
    As mobile devices are progressively developed, and the demand for such types of mobile devices increases, the demand for secondary batteries also increases effectively. Among such types of secondary batteries there is a secondary battery formed of lithium exhibiting high energy density and operational voltage and excellent characteristics in terms of preservation and durability, which has led it to be widely used as a source of energy for various electronic products. as well as for mobile devices.
    Depending on the types of external devices where the secondary batteries are used, they can be configured to have a type of separable structure where the secondary batteries can be easily inserted and removed from these external devices or have a built-in type structure where the secondary batteries come from. be embedded in external devices. For example, it is possible for a user to insert or remove a battery into and out of a device, such as a laptop computer. On the other hand, a device, such as a portable phone, a 3-layer MPEG audio player (mp3), a tablet PC or a device
    Petition 870190087421, of 9/5/2019, p. 7/23
    2/13 smart peripheral, require the presence of a built-in battery pack depending on its structure and capacity.
    However, several types of combustible materials are present in the formation of the secondary lithium battery. Resulting in that the secondary lithium battery can be heated or explode due to an overload in the battery, or the presence of excessive current in the battery, or some other external physical impact. That is, the safety of the secondary lithium battery is very small. Consequently, the safety devices, such as an element with a positive temperature coefficient (PTC) and a protection circuit module (PCM), are connected, together with a battery element, to effectively control the presence of an abnormal state of the secondary lithium battery, such as overload of the secondary lithium battery or the excess current present in the secondary lithium battery.
    In general, a secondary battery of the built-in type employs a plate-shaped battery element, convenient for electrical connections, and a PCM connected to the battery element via the conductive nickel plates by means of welding or welding. That is, the nickel plates are connected to the electrode terminals of the battery element by means of welding or welding, with a printed circuit board (PCB) being fixed to the side of a double-sided adhesive tape, with a tape of protection being fixed next to the other side of the double-sided adhesive tape, and with the electrode tabs of the PCB and the nickel plates being connected to each other by means of welding in a condition where the PCB is in extreme contact with the battery element. In this way, the PCB is connected to the battery element for the manufacture of a battery pack.
    The security elements, including the PCM, are required to be kept in electrical connection with the electrode terminals of the battery element and, at the same time, to be electrically isolated from the other parts of the battery element.
    For this purpose, the insulating tapes are attached to the various components, including the PCM. In addition, a sealed portion of the battery compartment, where the battery element is to be installed, is partially curved, with the electrical tape being attached to it or printing a bar code on it. That is, the process becomes quite complicated.
    Since a plurality of tapes or insulating parts are necessary to achieve a secure connection according to the description above, the process of assembling the battery pack is quite complicated, with the increase in manufacturing cost.
    In addition, when the external impact is applied to the battery pack, the PCM
    Petition 870190087421, of 9/5/2019, p. 8/23
    3/13 can be damaged or its dimensional stability can be greatly reduced due to the use of insulating tapes, exhibiting a low mechanical resistance.
    Therefore, there is a high need for a technology that is capable of reducing the number of components installed next to a battery element to simplify an assembly process, reaching a condition of stabilized coupling between the components loaded in the element battery and protecting the PCM.
    In addition, there is still a high need for a battery pack that presents conditions to provide large capacity while presenting the same size in consideration of the development trend of a device, with reduced weight and size.
    Description:
    Technical problem:
    Therefore, the present invention was developed for the solution of the mentioned problems, and other types of technical problems that have yet to be solved.
    In specific terms, it is an objective of the present invention to provide a secondary battery pack where a printed circuit board (PCB) is installed in an electrically insulated protective circuit module (PCM) compartment in an insertion mode, being able to provide protection and isolation to a PCM and electrode terminals to prevent the external exposure of a battery element.
    Another objective of the present invention is the provision of a secondary battery pack where there is a reduction in the number of parts that are necessary for the manufacture of the battery pack, thus simplifying the assembly process, with improved stability structural design of the battery pack.
    Another objective of the present invention is the provision of a secondary battery pack where the internal structure of the battery pack is changed to provide maximum capacity compared to battery packs having the same type of pattern.
    Another objective of the present invention is the provision of a PCM that is protected against external impact, presenting high dimensional stability, positioned close to the external side of a battery pack and assuming a uniform and attractive look.
    Technical Solution:
    In accordance with an aspect of the present invention, the objectives set out above and other objectives can be pursued by providing a secondary battery pack including an anodic terminal and a cathodic terminal of a battery element, with the anodic terminal and the cathodic terminal being made from a conductive component
    Petition 870190087421, of 9/5/2019, p. 9/23
    4/13 plate-shaped, with the anode terminal and the cathode terminal being electrically connected next to the protection circuit module (PCM), with a battery element showing the anode terminal and the cathode terminal formed next to one of its ends, with the battery element being made available at one of its ends with the excess portion being thermally welded, and a PCM including a printed circuit board (PCB) featuring a protective circuit formed there, with the PCB being provided together to one end of it containing a cathode terminal connection portion and an anode terminal connection portion, with the external input and output terminal being electrically connected to the PCB protection circuit via the external input terminal connection portion and PCB output, and an electrically insulated PCM compartment, where the PCB 200 is installed in an insertion mode, with the PCB being loaded with the thermally welded excess portion of the battery element in a direction where the PCB faces an upper end of the main element of the battery element.
    In the secondary battery pack according to the present invention, according to the description above, the PCB is installed in the electrically insulated compartment in an insertion mode. Consequently, it is possible to achieve PCM protection and isolation. It must also be possible to prevent the electrode terminals from being exposed on the outside without the isolation of the electrode terminals using additional components.
    In addition, in the secondary battery pack according to the present invention, the PCM configured to have a structure where the PCB is installed in a simple PCM compartment in an insertion mode, is loaded next to the thermally welded excess portion of the battery element. Compared to a conventional secondary battery pack of the built-in type, therefore, it becomes possible to effectively protect the PCM and considerably reduce the number of parts compared to a compartment, such as the PCM compartment that is divided into two parts , thereby greatly improving manufacturing capacity.
    Furthermore, in the secondary battery pack according to the present invention, the PCB is installed in the PCM compartment. In comparison with a conventional built-in battery pack where a PCM is isolated with a conventional tape, therefore, a battery pack manufacturing process is easily carried out, with the deficiency rate being relatively reduced, and the battery pack comes to show an aesthetically elegant appearance without the presence of wrinkles near the outside of the battery pack.
    In addition to this, the PCB is loaded with the thermally welded excess portion of the battery element in the direction where the PCB faces the end
    Petition 870190087421, of 9/5/2019, p. 10/23
    5/13 top of the main body of the battery element in a condition where the PCB comes to be positioned perpendicularly upright next to the battery element. Consequently, it is possible to shorten the thermally welded excess portion of the battery element compared to a structure where the PCB is loaded in parallel with the thermally welded excess portion of the battery element, thus increasing the capacity per unit volume of the secondary assembly. of battery.
    Preferably, the PCM compartment covers the PCM excluding the external input and output terminal. Consequently, the PCM compartment is loaded next to the thermally welded excess portion of the battery element in order to fully coat the PCM, providing complete stability of installation and insulation security.
    In a concrete example, there is the PCM compartment, which can be configured to assume a hollow box structural design with one of its ends being opened in the form of a slot, through which the PCB comes to be inserted. Consequently, the dimensional stability of the PCM compartment is increased, with the PCM being able to be easily installed in the PCM compartment.
    In addition, once the PCB is installed in the PCM compartment, configured to have a hollow box structure, in insertion mode, it is possible to greatly reduce the installation time and process compared to installing a PCM compartment in the type employing hooks.
    Preferably, an insulating tape is additionally attached to the exposed region of the electrode terminal of the thermally welded excess portion. As a result, it is possible to reach more effectively an isolation near the curved region. The double-sided adhesive tape provides the coupling force between the PCM compartment and the thermally welded excess portion when installing the PCM compartment, further improving structural stability.
    Various types of battery elements can be used in the secondary battery pack according to the present invention. The battery element used in the secondary battery pack according to the present invention may consist of a secondary battery in the shape of a bag, featuring a set of electrodes of a cathodic / separator / anodic structure installed in a battery compartment made from of a laminated plate with the inclusion of a metallic layer and a layer of resin in a sealed state, with its thickness and weight being small.
    Preferably, the PCB consists of a flexible printed circuit board (FPCB). Consequently, the PCB can be easily bent as needed. By reference, the PCB represents a printed circuit board using a flexible insulating panel.
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    6/13
    According to the definition given above, the PCB has the protection circuit to control overloads, discharges, excess current, etc. coming from the battery is provided next to one of its sides containing a cathode terminal connection portion and an anode terminal connection portion and next to one of its other sides containing an external input and output connection portion.
    Depending on the circumstances, a security element can also be installed between the anode terminal and / or the cathode terminal and the PCB to provide more security for the secondary battery pack. Preferably, the security element is positioned between the anode terminal of the battery element and the PCB. In addition, the security element can be installed in the PCM compartment together with the PCB in an insertion mode, providing structural stability stability.
    Consequently, it is possible to connect the cathode terminal of the battery element next to the cathode terminal connection portion of the PCB without changing the shape or without the use of additional components, connecting one side of the security element to an element connection portion PCB safety device located next to the same side of the PCM in a condition where the anode terminal of the battery element is connected to the other side of the safety element. As a result, the safety element, whose structural strength is low, is installed in a stable manner on the PCB, reducing the deficiency rate in a manufacturing process and improving the efficiency of the process.
    The safety element consists of an element interrupting the current when the temperature of the battery element rises, increasing the safety of the battery pack. For example, the safety element may consist of a positive temperature coefficient (PTC) element, whose resistance increases with increasing temperature, or a fuse, designed to increase the temperature. However, the safety element is not restricted to the PCT element or the fuse.
    In the example provided, the shape of the external input and output terminal is not particularly restricted as long as the external input and output terminal can be electrically connected to the PCB to supply current from an external device, such as a charger, until to the battery element or to supply current from the battery element to the portable phone, an mp3 player, etc. Preferably, the external input and output terminal is configured to have a flat structure where a connector is installed next to one of its ends.
    A nickel plate can also be installed on one side of the cathode terminal, being coupled with the cathode terminal connection portion of the PCB by means of ultrasonic welding. Consequently, there is prevention of a precarious welding that may exist between the cathodic terminal of the battery element, usually done
    Petition 870190087421, of 9/5/2019, p. 12/23
    7/13 aluminum, and the PCB cathode terminal connection portion, made of nickel, depending on the different properties existing between the same components.
    Subsequently, a label is attached to the PCM and the battery element, excluding the external input and output terminal and the top of the PCM, in order to cover the PCM and the battery element. Specifically, the label can be configured to assume a coating structure of the PCM and having thermally welded outer circumferences provided along the sides of the battery element excluding the external input and output terminal and the top of the PCM.
    Consequently, it is possible to steadily stabilize the thermally welded external circumferences next to the main body of the battery element 100 while generally promoting the maintenance of an isolated condition, establishing more stably the electrical connection between the electrode terminals of the battery element and the PCB.
    Preferably, the secondary battery pack according to the present invention consists of a secondary battery pack of the built-in type.
    According to another aspect of the present invention, a protection circuit module of a specific structure is provided for the constitution of a secondary battery pack containing the construction mentioned above.
    In specific terms, a protection circuit module (PCM) is provided to be installed near the top of a plate-shaped battery element with electrode terminals, each made from a conductive component in plate format, formed by an upper end of the module, and the PCM includes a printed circuit board (PCB) containing a protection circuit formed on it, with the PCB being made available at one of its ends containing a portion of cathodic terminal connection and an anodic terminal connection portion and next to the other on its sides having an external input and output terminal connection portion, with the external input and output terminal electrically connected to the PCB protection circuit via the connection portion of the external PCB input and output terminal, and an electrically insulated PCM compartment, where the PCB and a security element are installed in u In insertion mode, in a condition where an anode and cathode terminals are electrically connected to the PCB, with the PCB being charged along with the thermally welded excess portion of the battery element in a direction where the PCB faces an upper end main body of the battery element.
    In the general process of installing a secondary battery pack of the built-in type, a connection component and a PCM are coupled, and an insulating tape is attached next to each step, so that a PCM set is installed in the control element.
    Petition 870190087421, of 9/5/2019, p. 13/23
    8/13 battery, as described above. That is, the PCM set is installed next to the battery element using a large number of parts. Consequently, a large number of processes are necessary. In addition, the mechanical strength and structural stability of the battery pack are both low.
    On the other hand, the protection circuit module according to the present invention is configured to have a structure where the PCM is installed next to the PCM compartment. Consequently, the structural stability of the battery pack is improved by greatly simplifying the battery pack manufacturing process.
    In addition, in the protection circuit module according to the present invention, it is possible to prevent the cathodic and anodic terminals from being exposed to the outside without having to isolate these cathodic and anodic terminals via use additional components.
    Furthermore, the PCB is loaded in the thermally welded excess portion of the battery element in the direction where the PCB faces the upper end of the main body of the battery element of the specific structure mentioned above, and therefore it is possible to maximize the capacity of the battery pack compared to battery packs having the same standard.
    In a preferred example, the external input and output terminal can be connected to one side of the PCB, with the anodic terminal connection portion and a cathodic terminal connection portion to be formed close to the other side of the PCB in a way that the anode terminal connection portion and the cathode terminal connection portion correspond to the anode and cathode terminal, respectively.
    Preferably, the external input and output terminal is configured to have a flat structure where a connector is installed at one of its ends.
    Preferably, the PCM compartment is configured to have a hollow box structure, with one of its ends being opened in the shape of a slit, through which the PCB comes to be inserted.
    According to a further aspect of the present invention, a method is provided for manufacturing the secondary battery pack containing the construction set out above.
    Specifically, the secondary battery pack according to the present invention can be manufactured using a secondary battery pack manufacturing method including (a) the connection of a nickel plate on top of a cathode terminal of an element battery by means of ultrasonic welding, (b) connection of an anodic terminal and cathodic terminal of the battery element next to a connection portion
    Petition 870190087421, of 9/5/2019, p. 14/23
    9/13 anode terminal and a cathode terminal connection portion, formed at the rear of a PCB, by spot welding, (c) curvature of the electrode terminals of the battery element and installation of a PCM near the portion of thermally welded excess of the battery element, (d) insertion of the PCM into a PCM compartment configured to take on the shape of a hollow box structure, with one of its ends being opened in the shape of a slit, through which the external terminal inlet and outlet extends outwards, and (e) coating of the PCM and the thermally welded circumferences provided on the sides of the battery element, excluding the external input and output terminal and a top of the PCM, containing a label.
    In comparison with the method of making a secondary battery pack of the conventional built-in type, the method of making a secondary battery pack according to the present invention can reduce the amount of manufacturing processes and provide with a secondary battery pack displaying improved structural stability.
    In addition, in the secondary battery pack manufacturing method, it is possible to achieve protection and isolation of the PCM using the PCM compartment without the presence of an additional component, such as a label or electrical tape, and the compartments are installed after the electrical connection of the PCM to the PCB with the completion of the bending process. As a result, the exposed region will not be formed during the bending process, and therefore, no additional insulating material will be necessary.
    Depending on the circumstances, the method of manufacturing the secondary battery pack may also include attaching an insulating tape to the exposed electrode terminal region of the thermally welded excess portion prior to the actual curving step.
    Advantageous Effects:
    As can be seen from the previous description, in a secondary battery pack according to the present invention, there is the installation of a printed circuit board (PCB) in an electrically insulated protection circuit module (PCM) compartment ) in an insertion mode, thus reaching the protection and isolation of a PCM and preventing the electrode terminals of a battery element from being exposed to the outside.
    In addition, in the secondary battery pack according to the present invention, the PCM, including the PCM compartment, is loaded into a thermally welded excess portion of the battery element. Consequently, it is possible to simplify the battery pack manufacturing process and improve the structural stability of the battery pack.
    Furthermore, the secondary battery pack according to the present invention
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    10/13 has a specific internal structure, providing maximum performance compared to battery packs with the same pattern.
    In addition, a PCM coming in accordance with the present invention, is protected from external impacts, presenting high dimensional stability, with the PCM being positioned close to the external side of a battery pack while assuming an elegant appearance without the presence of wrinkles.
    Brief Description of Drawings:
    The objectives mentioned above and others, and characteristics and other advantages of the present invention will become more clearly understood from the detailed description below considered in conjunction with the accompanying drawings, where:
    Figure 1 consists of a detailed perspective view of a secondary battery pack according to an embodiment of the present invention;
    Figures 2 to 8 consist of perspective views showing a manufacturing process for the secondary battery set of Figure 1; and Figure 9 consists of a series of typical partial displays showing a bending process of a printed circuit board (PCB) according to an embodiment of the present invention.
    Best Mode:
    Following is the description of detailed example modalities with reference to the accompanying drawings. It should be noted, however, that the scope of the present invention is not restricted by the illustrated modalities.
    Fig. 1 consists of a detailed perspective view of a secondary battery pack according to an embodiment of the present invention.
    Referring to Fig.1, there is a secondary battery pack 900 including an anode terminal 120, a cathode terminal 110, a battery element 100, a protection circuit module 500 (PCM), and a label 400.
    Anode terminal 120 and cathode terminal 110 of battery element 100 comprise conductive plate-shaped components. Anode terminal 120 and cathode terminal 110 of battery element 10 are electrically connected to a PCM 500 printed circuit board 200 (PCB).
    Anode terminal 120 and cathode terminal 110 are formed near one end of the battery element 100. A thermally welded excess portion 130 is formed near a compartment extension portion at the upper end of the battery element 100.
    The PCM 500 includes a PCB 200 featuring a protection circuit formed there, with an external input and output terminal 210 electrically connected next to the protection circuit of the PCB 200, and an electrically insulated PCM compartment 600, where the
    Petition 870190087421, of 9/5/2019, p. 16/23
    11/13 the PCB 200 will be installed in an insertion mode.
    In addition, PCB 200 is loaded close to the thermally welded excess portion 130 of battery element 100 in a direction where PCB 200 comes into contact with the upper end of a main body of battery element 100.
    In the secondary battery pack 900, according to the present invention, consisting of a secondary battery pack of the built-in type, the PCM 500, configured so as to present a structure where the PCB 200 electrically connected to the cathode terminal 110 and the anode terminal 120 of the battery element 100 is installed in a PCM 600 compartment in an insertion mode, it is loaded next to the thermally welded excess portion 130, located in the compartment extension portion at the top end of the battery element 100. In comparison with a secondary battery pack of the conventional built-in type, therefore, it is possible to effectively protect the PCM 500 and considerably reduce the number of parts involved, greatly improving the processing capacity of the manufacture.
    Battery element 100 consists of a bag-shaped battery featuring an electrode installation of a cathodic / separator / anodic structure installed in a battery compartment made of a laminated sheet including the presence of a metallic layer in a sealed state .
    The external input and output terminal 210 is connected to one side of the PCB 200, being flexible to a printed circuit board. An anode terminal connection portion 220 and a cathode terminal connection portion 230 are formed next to another side of the PCB 200 so that the anode terminal connection portion 220 and the cathode terminal connection portion 230 correspond, respectively, anode terminal 120 and cathode terminal 110. As shown in Fig. 9, according to the description given below, the anode terminal connection portion 220 and the cathode terminal connection portion 230 are configured to have a structure where one end of the anode terminal connection portion 220 and one end of the cathode terminal connection portion 230 are coupled to the PCB 220, while the other end of the anode terminal connection portion 220 and the other end of the cathode terminal connection portion 230 extend in the shape of an L, so that the other end of the anode terminal connection portion 220 and the other end of the cathode terminal connection portion 230 can be curved.
    In addition, the external input and output terminal 210 has a plate structure where a connector is installed near one of its ends, with the PCM 600 compartment presenting a hollow box structure where the PCB 200 is installed in an insertion mode.
    Figs. 2-8 consist of perspective views showing sequentially
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    12/13 a manufacturing process for the secondary battery pack pertaining to Fig. 1
    The manufacturing process of the secondary battery pack will be described with reference to those drawings mentioned together with Fig. 1.
    First, with reference to Fig. 2, a nickel plate 140 is connected near the top of a cathode terminal 110 of a battery element 100, which, in turn, is coupled to a cathode terminal connection portion 230 of a 200 PCB, by means of ultrasonic welding.
    Then, referring to Fig. 3, an anode terminal 120 and cathode terminal 110 of the battery element 100 are connected next to the anode terminal connection portion 220 and the cathode terminal connection portion 230, formed in the another side of the PCB 200, through spot welding.
    With reference to Fig. 4, the PCB 200 is perpendicularly curved so that the anode terminal connection portion 220 and the cathode terminal connection portion 230 are positioned parallel to the battery element 100, and then a ribbon Double-sided adhesive 160 is attached to the exposed region of the electrode terminal of a thermally welded excess portion 130, comprising the upper end of the main body of the battery element 100.
    Referring to Fig. 5, the anode terminal 120 and the cathode terminal 110 of the battery element 100 are curved upward, with the PCB 200 being installed in the thermally welded excess portion 130 of the battery element 100.
    Referring to Figs 6 and 7, a PCM 600 compartment configured to have a hollow box structure, with an open end (not shown) in the form of a slit, through which an external input and output terminal 210 comes into view. extend, being installed next to the PCB 200.
    Finally, with reference to Fig. 8, the thermally welded circumferences provided next to the sides of a PCM 500 and the battery element 100, excluding the external input and output terminal 210 and the top of the PCM 500, are covered by a label 400 .
    Consequently, the label 400 precisely fixes the outer circumferences thermally welded to the main body of the battery element 100 while preserving the insulation of the battery element 100, generating a more stabilized secure electrical connection between the cathode terminal 110 and the anode terminal 120 of the battery element 100 and PCB 200.
    Fig. 9 typically shows a series of PCB bending processes according to an embodiment of the present invention. For the sake of descriptive convenience, Fig. 9 shows the cathodic connection process.
    When comparing Fig. 9 with Figs 3 to 5, the cathode terminal connection portion 230 of PCB 230 is welded to the nickel plate
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    13/13
    140 of cathode terminal 110, with the cathode terminal connection portion 230 being curved, and PCB 200 being curved so that PCB 200 is parallel to the top of battery element 100. That is, cathode terminal 110 is curved by twice.
    As a result, the PCB 200 is loaded next to the thermally given excess portion 5 of the battery element 100 in the direction in which the PCB 200 confronts the upper end of the main body of the battery element 100. Consequently, the size of the thermally welded excess portion 130 can be reduced. In addition, the overall weight of the PCM installation is reduced, and therefore, it is possible to increase the elevation of the battery element 100 while preserving the same total size of the battery pack, maximizing the maximum capacity the battery pack.
    Although the description of the present invention has been concentrated on the preferred example modalities for illustrative purposes, experts in the field will appreciate that several modifications, additions and substitutions are possible, without deviating from the scope and spirit of the invention. submitted in accordance with the follow-up claims.
    权利要求:
    Claims (14)
    [1]
    1. Secondary battery pack (900) comprising: a battery element (100) with an anode terminal (120) and a cathode terminal (110) formed on one side having a welded excess portion (130); and a protection circuit module - PCM (500) electrically connected to the battery element (100) through the anode terminal (120) and the cathode terminal (110), in which the PCM (500) comprises: a printed circuit panel - PCB (200) with a protection circuit formed over it, the PCB (200) being provided with a connection portion of the anode terminal (220) and a connection portion of the cathode terminal (230) connected to the anode terminal (120) and the cathodic terminal (110), respectively; and a PCM compartment (600) configured to receive the PCB (200) through an open face so that the PCM compartment (600) surrounds the PCB (200), and the PCB (200) is coupled to the anode terminal (120) and to the cathode terminal (110) of the battery element (100) via the anode terminal connection piece (220) and the cathode terminal connection piece (230) and is mounted on the welded excess portion (130) of the battery element (100), and the PCB (200) mounted on the welded excess portion (130) is arranged in the PCM compartment (600),
    CHARACTERIZED by the fact that the PCM compartment (600) is coupled to the PCB (200) on top, so that the PCB (200) is received in the PCM compartment (600) in a state where the PCB (200) is mounted perpendicularly to the welded excess portion (130), where the PCB (200) further comprises an external input and output terminal, and the external input and output terminal (210) is formed on the PCB (200) in which the connection portion of the anodic terminal (220) and the connecting portion of the cathodic terminal (230) are formed through an interconnecting portion, and in which the PCM compartment (600) further includes a slit opening formed on one face next to its open face , and the interconnecting portion extends through the slit opening.
    [2]
    2. Secondary battery pack (900), according to claim 1, CHARACTERIZED by the fact that the battery element (100) is a plate-shaped battery, and the anode terminal (120) and the cathode terminal (110 ) are conductive elements in the form of a plate.
    [3]
    3. Secondary battery pack (900) according to claim 1, CHARACTERIZED by the fact that the external input and output terminal (210) is formed on the PCB (200) in which the connection portion of the anode terminal (220 ) and the connecting portion of the cathodic terminal (230) are formed.
    [4]
    4. Secondary battery pack (900) according to claim 1, CHARACTERIZED by the fact that the external input and output terminal (210) is formed on the other side of the PCB (200) in which the terminal connection portion anodic (220) and the connecting portion of the cathodic terminal (230) are formed.
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    2/3
    [5]
    5. Secondary battery pack (900), according to claim 1, CHARACTERIZED by the fact that it also comprises an insulating tape additionally fixed to an exposed region of the electrode terminal of the excess welded portion (130).
    [6]
    6. Secondary battery pack (900) according to claim 5,
    CHARACTERIZED by the fact that the electrical tape is double-sided adhesive tape.
    [7]
    7. Secondary battery pack (900) according to claim 1,
    FEATURED by the fact that it also includes an insulating tape additionally attached to at least one of the external faces of the PCM compartment (600).
    [8]
    8. Secondary battery pack (900) according to claim 1, CHARACTERIZED by the fact that the battery pack (100) is configured to have a structure in which a set of electrodes, comprising cathodes, anodes and separators disposed between the cathodes and anodes respectively, are arranged in a battery compartment made of a laminated sheet comprising a metallic layer and a layer of resin in a sealed state.
    [9]
    9. Secondary battery pack (900), according to claim 1, CHARACTERIZED by the fact that the PCB (200), arranged in the PCM compartment (600) mounted on the welded excess portion (130), is mounted on the excess welded (130) so that the PCB (200) is arranged in the PCM compartment (600) so that the face of the PCB (200) on which the anode terminal connection portion (220) and the terminal connection portion cathode (230) are formed opposite the face of the battery element (100) on which the welded excess portion (130) is formed.
    [10]
    10. Secondary battery pack (900) according to claim 1, CHARACTERIZED by the fact that the connection portion of the anode terminal (220) of the PCM (500) is connected to the anode terminal of the battery through a second element of safety.
    [11]
    11. Secondary battery pack (900), according to claim 1, CHARACTERIZED by the fact that it also includes a nickel plate (140) additionally mounted to a face of the cathodic terminal (110), which is coupled to the portion of connection of the cathode terminal (110) of the PCB (200), by means of ultrasonic welding.
    [12]
    Secondary battery pack (900), according to claim 1, CHARACTERIZED by the fact that it also includes a label (400) to cover the battery element (100).
    [13]
    13. Secondary battery pack (900), according to claim 12, CHARACTERIZED by the fact that the label is configured to have a structure to cover the welded outer circumferences of the battery element (100).
    [14]
    14. Method of manufacturing a secondary battery pack (900) as defined in claim 1, CHARACTERIZED by the fact that it comprises:
    Petition 870190087421, of 9/5/2019, p. 21/23
    3/3 a step of forming a battery element (100) configured to have a structure in which a set of electrodes, comprising cathodes, anodes and separators respectively disposed between the cathodes and anodes, are arranged in a battery compartment in the state sealed, one of the sealed outer circumferences of the battery element 5 (100) having a surplus portion;
    a step of exposing an anode terminal (120) and a cathode terminal (110) in the soldered excess portion (130) of the battery element (100) and assembling a printed circuit board - PCB (200), having a connection portion the anodic terminal (220) and a connecting portion of the cathodic terminal (230) connected to the anodic terminal (120) and the cathodic terminal (110), respectively, to the welded excess portion (130); and a step for assembling a PCM compartment (600) open on one of its faces in the welded excess portion (130) so that the PCB (200) mounted on the excess welded portion (130) is received in the PCM compartment (600 ).
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    BR102012013186A2|2013-07-16|
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    WO2013024989A3|2013-04-11|
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    KR101227870B1|2013-01-31|
    US9083028B2|2015-07-14|
    CN102931373A|2013-02-13|
    JP2013041810A|2013-02-28|
    WO2013024989A2|2013-02-21|
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    法律状态:
    2013-07-16| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-04-03| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-09| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2020-03-10| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-04-07| 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 31/05/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    KR20110080661|2011-08-12|
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