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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
CPC分类号: H01M2/263 , H01M2/22 , H01M4/70 , H01M10/052 , Y02T10/7011
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)。