BATTERY AND PRODUCTION METHOD THEREFOR

    公开(公告)号:US20220166094A1

    公开(公告)日:2022-05-26

    申请号:US17440224

    申请日:2020-01-27

    Abstract: A battery comprising: a case having an opening at one end and a bottom at the other end. The case including a cylindrical side surface, an electrode group accommodated in the case together with an electrolytic solution, a cap that seals the opening of the case, and a gasket disposed between the opening of the case and the cap. The case includes an annular groove protruding inward of the case in a part of the cylindrical side surface. The gasket includes a seal accommodating the cap and a cylindrical part extending from the seal toward the electrode group. The cylindrical part of the gasket and a deepest groove of the case have portions in contact with each other, and a contact of the gasket is compressed by the deepest groove of the case.

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