INSULATING FILM, BATTERY CELL, BATTERY, PREPARING METHOD AND DEVICE, AND ELECTRICAL DEVICE

    公开(公告)号:US20230207995A1

    公开(公告)日:2023-06-29

    申请号:US18177534

    申请日:2023-03-02

    CPC classification number: H01M50/588 H01M50/59

    Abstract: Disclosed is an insulating film, a battery cell, a battery, a method for preparing a battery cell, a device for preparing a battery cell, and an electrical device, wherein the insulating film includes a bottom coverage region and a plurality of alternately arranged first side coverage regions and second side coverage regions; the plurality of first side coverage regions and second side coverage regions are all located on the same side of the bottom coverage region; the first side coverage region includes a bottom masking portion and two side overlapping portions stacked on the bottom masking portion; a first guide groove is formed at the junction of the bottom masking portion and the side overlapping portion, a second guide groove corresponding to the first guide groove is arranged on the side overlapping portion, the second guide groove intersects with the first guide groove, and is set to incline downward.

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