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    BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
    94.
    发明申请
    BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE 有权

    公开(公告)号：US20230006304A1

    公开(公告)日：2023-01-05

    申请号：US17942088

    申请日：2022-09-09

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Haizu JIN ,  Jiang LIU ,  Xiaona WANG ,  Wenwei CHEN

    IPC: H01M50/375 ,  H01M50/133

    Abstract: A battery cell includes a housing. A dimension of the housing along a length direction of the battery cell is greater than a dimension of the housing along a thickness direction of the battery cell and a dimension of the housing along a width direction of the battery cell. The housing includes a board extending along the length direction and an accommodation space opened from at least one end of the accommodation space. The battery cell further includes an electrode assembly disposed in the accommodation space and a cover configured to cover the opening. A pressure relief mechanism is disposed at the board and configured to be actuated, in response to an internal pressure or temperature of the housing reaching a threshold, to relieve the internal pressure. In the length direction, an extension dimension of the pressure relief mechanism is greater than or equal to ¼ of an extension dimension of the board.

    BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS
    95.
    发明申请
    BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS 有权

    公开(公告)号：US20220416375A1

    公开(公告)日：2022-12-29

    申请号：US17894015

    申请日：2022-08-23

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO.,LIMITED

    Inventor： Haizu JIN ,  Xinzhan Wu ,  Zhenhua Li ,  Kaijie You ,  Wenei Chen

    IPC: H01M50/54

    Abstract: This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes: an electrode assembly, including a body portion and a first tab. A first size L1 of the body portion in a length direction thereof is greater than a second size L2 of the body portion in a width direction thereof. The first tab is located on at least one end of the body portion in the width direction. The first tab has a third size L3 in the length direction. The first size L1, the second size L2, and the third size L3 satisfy 0.5L2≤L3≤L1. The battery cell according to an embodiment of this application is intended to resolve a technical problem of severe heat generation by a tab.

    ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE
    98.
    发明申请
    ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE 有权

    公开(公告)号：US20220367918A1

    公开(公告)日：2022-11-17

    申请号：US17847200

    申请日：2022-06-23

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Hu XU ,  Haizu JIN

    IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/538

    Abstract: Embodiments of the application provide an electrode assembly, a battery cell, a battery and an electric device. The electrode assembly in the embodiments of the application includes a positive pole piece and a negative pole piece, the positive pole piece and the negative pole piece are wound in a winding direction to form a winding structure including a bent region. The positive pole piece and the negative pole piece each includes a plurality of bent portions located in the bent region, at least one of the bent portions in the positive pole piece is a first bent portion and at least one of the bent portions in the negative pole piece is a second bent portion adjacent to the first bent portion. The electrode assembly is provided with a first barrier. The application can improve the safety performance of the battery cell.

    BATTERY CELL, BATTERY, POWER CONSUMPTION APPARATUS, METHOD AND APPARATUS FOR PRODUCING BATTERY CELL
    100.
    发明申请
    BATTERY CELL, BATTERY, POWER CONSUMPTION APPARATUS, METHOD AND APPARATUS FOR PRODUCING BATTERY CELL 有权

    公开(公告)号：US20220320644A1

    公开(公告)日：2022-10-06

    申请号：US17847347

    申请日：2022-06-23

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Dongsheng SUN ,  Kun FANG ,  Zhisheng CHAI ,  Qingkui CHI ,  Haizu JIN

    IPC: H01M50/147 ,  H01M50/317 ,  H01M50/102 ,  H01M50/533 ,  H01M50/543

    Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.

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