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公开(公告)号:US20240039030A1
公开(公告)日:2024-02-01
申请号:US18210655
申请日:2023-06-16
发明人: Ruiqi BAO , Haining HUANG
IPC分类号: H01M10/04
CPC分类号: H01M10/0409 , H01M10/0431
摘要: A battery winding apparatus and method is provided. The battery winding method includes steps of providing a first sheet group comprising a cathode sheet, a second sheet group comprising an anode sheet, and a winding mechanism for a winding operation, where the first sheet group and/or the second sheet group are pre-formed with a separator or separators; and winding the first sheet group and the second sheet group by the winding mechanism to obtain a battery cell. The battery winding method forms the first sheet group and the second sheet group by pre-bonding the separator or separators to the cathode sheet and/or the anode sheet to solve the problem of wrinkling of the sheet or changing the core into the S-shaped and low winding efficiency in the prior art.