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    • 9. 发明申请
    • BATTERY PACK
    • 电池组
    • US20150228933A1
    • 2015-08-13
    • US14529128
    • 2014-10-30
    • SAMSUNG SDI CO., LTD.
    • Jae-Il Seong
    • H01M2/02H01M2/30
    • H01M2/0202H01M2/0404H01M2/22H01M2/30H01M2220/30
    • A secondary battery includes a can having an opening at one end, an electrode assembly accommodated in the can through the opening, a cap plate that seals the opening, and an insulation plate below the cap plate. The can includes: a first surface that is convex; a second surface that faces the first surface and is concave; a third surface that is curved and connected to the first surface and the second surface to form a bottom surface; a first connection portion that connects the first surface and the third surface and has a round form having a first radius of curvature; and a second connection portion that connects the second surface and the third surface and has a round form having a second radius of curvature. At least one of the first radius of curvature and the second radius of curvature varies along a length of the third surface.
    • 二次电池包括在一端具有开口的罐,通过开口容纳在罐中的电极组件,密封开口的盖板和在盖板下方的绝缘板。 罐包括:凸起的第一表面; 面对第一表面并且是凹的第二表面; 第三表面,其弯曲并连接到第一表面和第二表面以形成底表面; 连接第一表面和第三表面并具有第一曲率半径的圆形的第一连接部分; 以及连接第二表面和第三表面并具有第二曲率半径的圆形的第二连接部分。 所述第一曲率半径和所述第二曲率半径中的至少一个沿所述第三表面的长度变化。