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    • 7. 发明公开
    • Cylindrical storage battery with spirally wounded electrode assembly
    • Zylindrische Speicherbatterie mitspiralförmiggewickelten Elektrodenblock
    • EP0878855A1
    • 1998-11-18
    • EP98103137.0
    • 1998-02-23
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Nakamaru, HisaoSuzuki, NorioEguchi, ToshihideOnishi, Masato
    • H01M2/26H01M10/28
    • H01M2/263H01M10/286Y02E60/124
    • A cylindrical storage battery having a spirally coiled electrode plate assembly in which the shape of the current collector welded to the end part of the electrode plate assembly is improved and the crossing parts of the rib-formed projections of the current collector and the electrode plate terminal edges are welded with sufficient strength permits a high-rate charge and discharge.
      A storage battery having a spirally coiled electrode plate assembly 5 comprising a positive electrode plate 1, a negative electrode plate 2 and a separator 6, and rectangular current collectors 7 and 8, the respective one of which being welded respectively to the terminal edges 3 and 4 of the electrode 1 and 2 respectively projecting outward from the upper and the lower end planes of the electrode assembly, the current collector welded to the end part of the electrode plate assembly 5 having a flat plate part 7b provided with rectangular cutout parts 7a, in a radial manner and with equal intervals therebetween at 4 places, which extend from the neighborhood of the center to the outer peripheral edge of the plate part, and rib-formed projections 7d which are formed integrally, bent downward, at the two opposed edge parts 7c of the respective cutout parts and are made to cross the terminal edge of the electrode plate and welded thereto.
    • 一种圆柱形蓄电池,其具有螺旋卷绕的电极板组件,其中焊接到电极板组件的端部的集电体的形状被改善,并且集电器和电极板端子的肋形突起的交叉部分 边缘以足够的强度焊接,允许高速率的充放电。 具有包括正极板1,负极板2和隔板6的螺旋卷绕的电极板组件5的蓄电池以及矩形集电器7和8,它们各自分别焊接到端子边缘3和 电极1和2分别从电极组件的上端面和下端面向外突出,焊接到电极板组件5的端部的集电体具有设置有矩形切口部分7a的平板部分7b, 在从中心部附近延伸到板部的周围的4个位置上以等间隔的方式形成有一体的凸条7d,该凸条7d在两个相对的边缘处一体地向下弯曲 各个切口部分的部分7c被制成穿过电极板的端部边缘并焊接到其上。