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    SECONDARY BATTERY INCLUDING INJECTION MOLDED BATTERY CASE
    3.
    发明公开
    SECONDARY BATTERY INCLUDING INJECTION MOLDED BATTERY CASE 审中-公开

    公开(公告)号：EP3633757A1

    公开(公告)日：2020-04-08

    申请号：EP18872993.3

    申请日：2018-07-05

    申请人： LG Chem, Ltd.

    发明人： HWANG, Soo Ji ,  CHOI, Yong Su ,  KIM, Sang Hun ,  YU, Hyung Kyun ,  KIM, Na Yoon ,  KANG, Min Hyeong ,  KIM, Yong

    IPC分类号： H01M2/02 ,  H01M10/04 ,  H01M10/058 ,  B29C45/14 ,  B29L31/00

    摘要： Disclosed herein is a secondary battery configured to have a structure in which an electrode assembly is received in a battery case together with an electrolytic material, wherein the battery case is provided therein with a space for receiving the electrode assembly and wherein the battery case is made of a thermoplastic resin, which can be injection-molded. In the case of using a secondary battery having therein a space for an electrode assembly and an electrolytic material and including a battery case made of a thermoplastic resin, which can be injection-molded, an injection mold may be formed such that the size of the mold corresponds to the thickness of the electrode, thereby solving a problem in which the formability of a conventional laminate sheet including a metal layer is low. In addition, a process of forming the laminate sheet and a process of sealing the battery case using a pressing member, which are essentially required in order to use the laminate sheet, may be omitted, whereby a manufacturing process is simplified and thus productivity is improved.

    BATTERY CASE INCLUDING DIVERSIFIED METAL BLOCKING LAYERS, AND BATTERY CELL INCLUDING SAME
    4.
    发明公开
    BATTERY CASE INCLUDING DIVERSIFIED METAL BLOCKING LAYERS, AND BATTERY CELL INCLUDING SAME 审中-公开

    公开(公告)号：EP3618137A1

    公开(公告)日：2020-03-04

    申请号：EP18867898.1

    申请日：2018-07-05

    申请人： LG Chem, Ltd.

    发明人： KIM, Sang Hun ,  KIM, Yong ,  CHOI, Yong Su ,  YU, Hyung Kyun ,  HWANG, Soo Ji ,  KIM, Na Yoon ,  KANG, Min Hyeong

    IPC分类号： H01M2/02 ,  B32B15/08 ,  B32B7/12

    摘要： Disclosed herein is a pouch-shaped battery case for receiving an electrode assembly, configured to have a structure in which a separator is interposed between a positive electrode and a negative electrode, together with an electrolytic solution, the pouch-shaped battery case including an outer coating layer constituting the outer surface of the battery case in order to protect a battery cell from the outside, the outer coating layer being made of a polymer resin, a metal barrier layer located inside the outer coating layer, the metal barrier layer exhibiting high moisture-blocking efficiency and thermal conductivity, and an inner sealant layer located inside the metal barrier layer, the inner sealant layer being made of a polymer resin that exhibits high thermal fusibility, wherein the metal barrier layer includes a first metal that exhibits high formability and a second metal that exhibits high rigidity.

    POUCH TYPE SECONDARY BATTERY
    6.
    发明公开
    POUCH TYPE SECONDARY BATTERY 审中-公开

    公开(公告)号：EP3627581A1

    公开(公告)日：2020-03-25

    申请号：EP18882158.1

    申请日：2018-11-06

    申请人： LG Chem, Ltd.

    发明人： CHOI, Yong Su ,  KIM, Sang Hun ,  KANG, Min Hyeong ,  YU, Hyung Kyun ,  HWANG, Soo Ji ,  KIM, Na Yoon ,  KIM, Yong

    IPC分类号： H01M2/06 ,  H01M2/26 ,  H01M2/08 ,  H01M2/02

    摘要： To solve the above problem, a pouch type secondary battery according to an embodiment of the present invention includes: an electrode assembly in which an electrode including a positive electrode and a negative electrode and a separator are alternately laminated; a battery case accommodating the electrode assembly; an electrode tab connected to the electrode and protruding from one side of the electrode assembly; a first electrode lead having one end connected to the electrode tab; a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to an outside of the battery case; a connection part connecting the first and second electrode leads to each other; an insulation part fused to surround a portion of each of the first and second electrode leads and bond the first and second electrode leads to the battery case; and a fusion prevention part disposed at a specific position on one surface of the first electrode lead to prevent the first electrode lead from being fused to the insulation part

    SECONDARY BATTERY POUCH-TYPE CASE CAPABLE OF DISCHARGING GAS
    8.
    发明公开
    SECONDARY BATTERY POUCH-TYPE CASE CAPABLE OF DISCHARGING GAS 审中-公开

    公开(公告)号：EP3614450A1

    公开(公告)日：2020-02-26

    申请号：EP18868317.1

    申请日：2018-07-05

    申请人： LG Chem, Ltd.

    发明人： HWANG, Soo Ji ,  CHOI, Yong Su ,  KIM, Sang Hun ,  YU, Hyung Kyun ,  KIM, Na Yoon ,  KANG, Min Hyeong ,  KIM, Yong

    IPC分类号： H01M2/02 ,  H01M2/12

    摘要： Disclosed herein is a pouch-shaped battery case for secondary batteries configured to be sealed by thermal fusion in the state in which an electrode assembly is mounted therein, wherein the pouch-shaped battery case is configured to have a structure in which an outer coating layer, a metal barrier layer, and an inner adhesive layer are sequentially stacked, in which an adhesive layer is interposed between the outer coating layer and the metal barrier layer in order to increase the force of adhesion therebetween, and in which an adhesive layer is also interposed between the metal barrier layer and the inner adhesive layer in order to increase the force of adhesion therebetween, an outer edge of an upper case and an outer edge of a lower case are sealed by thermal fusion such that the electrode assembly is mounted in the pouch-shaped battery case, and a gas discharge member for allowing the inside and the outside of the pouch-shaped battery case to communicate with each other is disposed in a sealed portion formed as the result of the upper case and the lower case being thermally fused.