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    SECONDARY BATTERY, BATTERY COLUMN, AND APPARATUS
    14.
    发明申请
    SECONDARY BATTERY, BATTERY COLUMN, AND APPARATUS 有权

    公开(公告)号：US20210399372A1

    公开(公告)日：2021-12-23

    申请号：US17462741

    申请日：2021-08-31

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Xiang LI ,  Yulian ZHENG ,  Peng WANG ,  Shoujun HUANG ,  Xinxiang CHEN

    IPC: H01M50/188 ,  B60K1/04 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543

    Abstract: This application relates to a secondary battery, a battery column, and an apparatus. The secondary battery includes a top cover plate, having an outer surface and an inner surface disposed opposite each other in a thickness direction of the top cover plate and an electrode lead-out hole extending along the thickness direction; a pole, disposed in the electrode lead-out hole, where the pole includes a first metal layer and a second metal layer, and the first metal layer and the second metal layer are stacked along a direction from the inner surface to the outer surface; an insulation member, disposed between the top cover plate and the pole; and a first bonding layer, disposed between the insulation member and the first metal layer, where the insulation member is hermetically connected to the first metal layer through the first bonding layer.

    END COVER ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE
    16.
    发明公开
    END COVER ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE 审中-公开

    公开(公告)号：US20240304959A1

    公开(公告)日：2024-09-12

    申请号：US18669755

    申请日：2024-05-21

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Long CHEN ,  Denghua LIN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

    IPC: H01M50/566 ,  H01M50/103 ,  H01M50/15 ,  H01M50/55

    CPC classification number: H01M50/566 ,  H01M50/103 ,  H01M50/15 ,  H01M50/55

    Abstract: Embodiments of this application provide an end cover assembly, a battery cell, a battery, and an electric device. The end cover assembly includes: an electrode terminal; a first fastener, where the first fastener encloses an accommodating space with openings at two ends in a first direction, at least a portion of the electrode terminal is accommodated in the accommodating space, and a surface of the first fastener facing the accommodating space is provided with a first insulating layer; a second fastener, where the second fastener connects at least a portion of a surface of the electrode terminal facing the first fastener and the first fastener; and an end cover plate, where a first end of the first fastener in the first direction is fixedly connected to the end cover plate to fix the electrode terminal to the end cover plate.

    BATTERY CELL, BATTERY AND ELECTRICAL DEVICE
    18.
    发明公开
    BATTERY CELL, BATTERY AND ELECTRICAL DEVICE 审中-公开

    公开(公告)号：US20230395952A1

    公开(公告)日：2023-12-07

    申请号：US18449511

    申请日：2023-08-14

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Denghua LIN ,  Xinxiang CHEN ,  Zhijun GUO ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

    IPC: H01M50/547 ,  H01M50/169

    CPC classification number: H01M50/547 ,  H01M50/169 ,  H01M2220/20

    Abstract: A battery cell includes a first surface, a second surface, and a first electrode terminal. A first region of an edge of the first surface is recessed to form a first recess. The second surface is configured to arrange the first electrode terminal. The first surface and the second surface are perpendicular to a first direction. The first electrode terminal protrudes from the second surface in the first direction and faces the first recess. In the first direction, a depth of the first recess is greater than a height of the first electrode terminal, and a projection area of the first recess on the first surface is greater than a projection area of the first electrode terminal on the first surface.

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