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    BATTERY CELL, BATTERY, ELECTRIC APPARATUS, AND METHOD AND APPARATUS FOR PREPARING BATTERY CELL
    1.
    发明公开
    BATTERY CELL, BATTERY, ELECTRIC APPARATUS, AND METHOD AND APPARATUS FOR PREPARING BATTERY CELL 审中-实审

    公开(公告)号：EP4428992A1

    公开(公告)日：2024-09-11

    申请号：EP21965082.7

    申请日：2021-11-24

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： XU, Hu ,  JIN, Haizu ,  ZHAO, Fenggang ,  HUANG, Siying

    IPC分类号： H01M50/102 ,  H01M50/172 ,  H01M50/204 ,  H01M10/613

    CPC分类号： Y02E60/10 ,  H01M50/204 ,  H01M50/102 ,  H01M50/172 ,  H01M10/613

    摘要： Embodiments of this application provide a battery cell, a battery, an electric apparatus, and a preparation method and device of battery cell. The battery cell includes: a hexahedral housing, where the hexahedral housing has a first wall and a second wall oppositely arranged, the first wall is provided with a positive electrode terminal, and the second wall is provided with a negative electrode terminal; and a cylindrical electrode assembly arranged in the housing, where the axial direction of the cylindrical electrode assembly is perpendicular to the first wall or the second wall, a positive electrode tab of the cylindrical electrode assembly is arranged at a first end of the cylindrical electrode assembly and connected to the positive electrode terminal, and a negative electrode tab of the cylindrical electrode assembly is arranged at a second end of the cylindrical electrode assembly and connected to the negative electrode terminal. The battery cell provided in this application can reduce the heat diffusion of the battery cell in a case of thermal runaway, improve the safety of the battery cell, and prolong the service life of the battery.

    BATTERY
    3.
    发明公开
    BATTERY 审中-实审

    公开(公告)号：EP4404318A1

    公开(公告)日：2024-07-24

    申请号：EP24151620.2

    申请日：2024-01-12

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： FUJISAKI, Sadao

    IPC分类号： H01M10/04 ,  H01M50/102 ,  H01M50/103

    CPC分类号： H01M50/102 ,  H01M50/103 ,  H01M10/0418

    摘要： A battery has: an electrode body; a positive electrode foil and a negative electrode foil provided at surfaces of the electrode body; a metal exterior body pair formed from a positive electrode metal exterior body that contacts the positive electrode foil and a negative electrode metal exterior body that contacts the negative electrode foil; and resins that fix the electrode body and the metal exterior body pair. Outer surfaces of the metal exterior body pair are exposed so as to enable electrical connection with an exterior. At least one of the positive electrode metal exterior body or the negative electrode metal exterior body is shaped as a box having a bottom plate that is quadrilateral and four side plates that each share one side with the bottom plate, and accommodates the electrode body at an inner side of the box shape. The positive electrode metal exterior body, the negative electrode metal exterior body, and side surfaces of the electrode body are respectively insulated by the resins.

    BATTERY CELL AND BATTERY
    6.
    发明公开
    BATTERY CELL AND BATTERY 审中-实审

    公开(公告)号：EP4398384A1

    公开(公告)日：2024-07-10

    申请号：EP22922648.5

    申请日：2022-01-26

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： XU, Hu ,  NIU, Shaojun ,  JIN, Haizu ,  LI, Xing ,  ZHAO, Fenggang

    IPC分类号： H01M50/102

    CPC分类号： Y02E60/10 ,  H01M50/102

    摘要： The present application relates to a battery cell (10, 20, 30, 40), including a shell (1) and further including three electrode assemblies (JR1, JR2, JR3) wound into cylinders, wherein the three electrode assemblies (JR1, JR2, JR3) are arranged in a row in the shell (1) in such a manner that axes of the three electrode assemblies (JR1, JR2, JR3) are parallel to one another, the shell (1) has a thickness middle surface connected to the axes of the three electrode assemblies (JR1, JR2, JR3), the thickness middle surface is in a V shape, the shell (1) has a first side surface (2) and a second side surface (2) both in an arcuate wavy shape, the first side surface (2) and the second side surface (2) are opposite each other relative to the thickness middle surface of the shell (1), and the three electrode assemblies (JR1, JR2, JR3) are arranged between the first side surface (2) and the second side surface (2). The present application further relates to a battery (100, 200, 300, 400, 500), including a plurality of the battery cells (10, 20, 30, 40) according to the present application. By means of such battery cells (10, 20, 30, 40), the number of the battery cells (10, 20, 30, 40) can be reduced in the battery (100, 200, 300, 400, 500), thereby reducing the number of connectors for connecting the battery cells (10, 20, 30, 40), and fully utilizing the structure space.

    ALUMINUM LAMINATED FILM FOR BATTERY, BATTERY, AND VEHICLE
    7.
    发明公开
    ALUMINUM LAMINATED FILM FOR BATTERY, BATTERY, AND VEHICLE 审中-公开

    公开(公告)号：EP4439806A1

    公开(公告)日：2024-10-02

    申请号：EP23765966.9

    申请日：2023-03-07

    申请人： BYD Company Limited

    发明人： LUO, Jiancheng ,  YUAN, Wansong ,  WANG, Xinyue ,  ZHAO, Yukai ,  DUAN, Pingan

    IPC分类号： H01M50/102

    CPC分类号： Y02E60/10 ,  H01M10/0525 ,  H01M50/102

    摘要： An aluminum plastic film of a battery, a battery and a vehicle are provided. The aluminum plastic film of a batter includes a pit and a flanging. The pit is used for placing a battery pole core and has a bottom surface, a first side elevation connected to the bottom surface and a second side elevation connected to the bottom surface. The first side elevation and the second side elevation are connected to each other. A first lower arc chamfer is formed at the joint of the bottom surface and the first side elevation, and a second lower arc chamfer is formed at the joint of the bottom surface and the second side elevation. The flanging is located at the upper periphery rim of the pit and connected to the upper end of the side elevation. A first upper arc chamfer is formed at the joint of the first side elevation and the flanging, and a second upper arc chamfer is formed at the joint of the second side elevation and the flanging.

    PRESSURE RELIEF STRUCTURE, BATTERY CELL, BATTERY AND ELECTRIC DEVICE
    8.
    发明公开
    PRESSURE RELIEF STRUCTURE, BATTERY CELL, BATTERY AND ELECTRIC DEVICE 审中-实审

    公开(公告)号：EP4418433A1

    公开(公告)日：2024-08-21

    申请号：EP22946455.7

    申请日：2022-08-17

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： QIAN, Ou ,  LI, Yao ,  CHEN, Xiaobo ,  YANG, Piaopiao ,  GU, Mingguang

    IPC分类号： H01M50/342

    CPC分类号： Y02E60/10 ,  H01M50/133 ,  H01M50/342 ,  H01M50/102

    摘要： The present application relates to a pressure relief structure, comprising a carrier substrate (241), the carrier substrate (241) having a pressure relief portion (243) and a remaining area (244) other than the pressure relief portion (243), with the thickness of the pressure relief portion (243) being smaller than that of the remaining area (244). The ratio of the thickness of the pressure relief portion (243) to the length of the carrier substrate (241) in a first direction is denoted as A, where A is greater than 5.6 × 10-6 and less than 0.028, and/or the ratio of the thickness of the pressure relief portion (243) to the width of the carrier substrate (241) in a second direction is denoted as B, where B is greater than 5 × 10-5 and less than 0.1. The first direction, the second direction and a thickness direction of the pressure relief portion (243) intersect with each other.

    BATTERY CELL AND MANUFACTURING METHOD AND MANUFACTURING SYSTEM THEREFOR, AND BATTERY AND ELECTRIC APPARATUS
    9.
    发明公开
    BATTERY CELL AND MANUFACTURING METHOD AND MANUFACTURING SYSTEM THEREFOR, AND BATTERY AND ELECTRIC APPARATUS 审中-实审

    公开(公告)号：EP4354598A1

    公开(公告)日：2024-04-17

    申请号：EP21962830.2

    申请日：2021-11-03

    申请人： Contemporary Amperex Technology Co., Limited

    发明人： XU, Hu ,  JIN, Haizu ,  NIU, Shaojun ,  LI, Xing ,  LIU, Xiaomei

    IPC分类号： H01M50/102

    CPC分类号： Y02E60/10 ,  H01M50/102

    摘要： The embodiments of the present application provide a battery cell and a manufacturing method and manufacturing system therefor, and a battery and an electric apparatus. The battery cell in the present embodiment comprises an electrode assembly, a housing, and a first electrode terminal, wherein the housing is used for accommodating the electrode assembly, and an outer surface of the housing comprises an outer side face, which is parallel to a first direction, and a first surface, which is connected to the outer side face, the outer side face being arranged around the electrode assembly, and the first surface intersecting with the first direction; and the first electrode terminal is arranged on the first surface in a protruding manner and is configured to be electrically connected to the electrode assembly, and the first electrode terminal does not protrude, in the first direction, from the outermost end of the first surface in the first direction. By means of the present embodiment, the effective volume utilization rate of a battery cell in a battery is increased, and the energy density of the battery is improved.