SECONDARY BATTERY
    3.
    发明申请
    SECONDARY BATTERY 审中-公开

    公开(公告)号:US20180287105A1

    公开(公告)日:2018-10-04

    申请号:US15942694

    申请日:2018-04-02

    Applicant: LG CHEM, LTD.

    Abstract: Disclosed is a secondary battery. According to the present invention, a charging/discharging pin is prevented from being separated from a top cap while the secondary is charged and discharged to improve safety during the charging/discharging of the secondary battery. According to an aspect of the present invention, the secondary battery includes a can accommodating an electrode assembly, a top cap provided on an upper portion of the can, and a groove defined in a surface of the top cap and having a shape that is recessed downward. When the top cap is viewed from an upper side, the groove has a closed curve shape.

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