发明授权
- 专利标题: Negative-electrode plate and cylindrical cell including same
- 专利标题(中): 负极板和包括其的圆柱形电池
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申请号: US13535166申请日: 2012-06-27
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公开(公告)号: US08815451B2公开(公告)日: 2014-08-26
- 发明人: Satoshi Wada , Isao Mugima , Tomomi Nakamura , Masaru Kihara , Toshiki Sato
- 申请人: Satoshi Wada , Isao Mugima , Tomomi Nakamura , Masaru Kihara , Toshiki Sato
- 申请人地址: JP Takasaki-shi
- 专利权人: FDK Twicell Co., Ltd.
- 当前专利权人: FDK Twicell Co., Ltd.
- 当前专利权人地址: JP Takasaki-shi
- 代理机构: Marshall, Gerstein & Borun LLP
- 优先权: JP2011-146245 20110630
- 主分类号: H01M4/02
- IPC分类号: H01M4/02 ; H01M10/04 ; H01M10/12 ; H01M2/02 ; H01M10/42 ; H01M10/28 ; H01M10/0587
摘要:
A negative-electrode plate 22 for use in a cylindrical cell, intended to be laid over a positive-electrode plate 21 with a separator 23 interposed between and rolled to form a cylindrical electrode body 20, with the positive-electrode plate 21 inside, the electrode body being arranged in a bottomed cylindrical outer can 10 to form the cylindrical cell, comprises a first negative-electrode part 22a which is to face the positive-electrode plate 21 on either side, with the separator 23 between, when formed into the electrode body 20, and a second negative-electrode part 22b which is to form the innermost circumference of the electrode body 20 and face the positive-electrode plate 21 only on one side, with the separator 23 between, when formed into the electrode body 20, the second negative-electrode part 22b being lower in negative-electrode active material density than the first negative-electrode part 22a.
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