SECONDARY BATTERY
    1.
    发明申请
    SECONDARY BATTERY 审中-公开
    二次电池

    公开(公告)号:US20100316897A1

    公开(公告)日:2010-12-16

    申请号:US12740582

    申请日:2008-09-25

    IPC分类号: H01M10/0587

    摘要: A secondary battery has a so-called tabless structure. An electrode group (4) includes an exposed end (1a) and a body portion (5). In the exposed end (1a), a current collector is exposed. In the body portion (5), an active material is provided on a surface of the current collector. A current collector plate (10) includes a principal surface (11) to which the electrode group (4) is connected, and projections (13) provided on the periphery of the principal surface (11). Moreover, in a direction in which a positive electrode plate (1), a porous insulating layer (3) and a negative electrode plate (2) are sequentially arranged, a width of the current collector plate (10) is equal to or smaller than a width of the body portion (5). Furthermore, the projections (13) sandwich the exposed end (1a) in a direction perpendicular to a longitudinal direction of the exposed end (1a).

    摘要翻译: 二次电池具有所谓的无标签结构。 电极组(4)包括露出端(1a)和主体部分(5)。 在暴露端(1a)中,露出集电器。 在主体部(5)中,在集电体的表面设置活性物质。 集电板(10)包括连接有电极组(4)的主表面(11)和设置在主表面(11)周边上的突起(13)。 此外,在正极板(1),多孔绝缘层(3)和负极板(2)依次排列的方向上,集电板(10)的宽度等于或小于 主体部分(5)的宽度。 此外,突起(13)在与暴露端部(1a)的纵向方向垂直的方向上夹着露出端部(1a)。