发明授权
- 专利标题: Cell comprising spirally wound electrodes
- 专利标题(中): 电池包括螺旋缠绕的电极
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申请号: US746341申请日: 1996-11-08
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公开(公告)号: US6051333A公开(公告)日: 2000-04-18
- 发明人: Ryo Nagai , Hiroshi Fukunaga , Shoichiro Tateishi
- 申请人: Ryo Nagai , Hiroshi Fukunaga , Shoichiro Tateishi
- 申请人地址: JPX Osaka
- 专利权人: Hitachi Maxell, Ltd.
- 当前专利权人: Hitachi Maxell, Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX7-315943 19951108
- 主分类号: H01M4/70
- IPC分类号: H01M4/70 ; H01M4/13 ; H01M4/24 ; H01M4/64 ; H01M4/74 ; H01M6/10 ; H01M10/04 ; H01M10/05 ; H01M10/0587 ; H01M10/28 ; H01M10/24
摘要:
A cell comprising an electrode body having positive and negative electrodes which are spirally wound with interposing a separator therebetween and a cell case in which the electrode body is inserted, wherein a pair of the negative electrodes face respective surfaces of the positive electrode through the separator, and the negative electrodes are in contact with each other substantially in the second and subsequent turns, or wherein the negative electrode comprises a metal substrate and a pair of layers of electrode active material formed on both surfaces of the substrate, provided that the negative electrode which is present in at least one of the innermost and outermost turns of electrode body carries the layer of the electrode active material only on one side of the substrate, and each layer of the electrode active material of the negative electrode faces the positive electrode through the separator.
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