发明授权
- 专利标题: Negative electrode for a nickel-hydrogen rechargeable battery and a nickel-hydrogen rechargeable battery using the same
- 专利标题(中): 用于镍氢可再充电电池的负电极和使用其的镍氢可再充电电池
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申请号: US13485767申请日: 2012-05-31
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公开(公告)号: US08785019B2公开(公告)日: 2014-07-22
- 发明人: Masaru Kihara , Takahiro Endo , Toshiki Sato , Akira Saguchi , Satoshi Wada , Isao Mugima , Tomomi Nakamura , Hideyuki Asanuma , Masanori Tamura
- 申请人: Masaru Kihara , Takahiro Endo , Toshiki Sato , Akira Saguchi , Satoshi Wada , Isao Mugima , Tomomi Nakamura , Hideyuki Asanuma , Masanori Tamura
- 申请人地址: JP Takasaki-shi, Gunma
- 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, Gunma
- 代理机构: Marshall, Gerstein & Borun LLP
- 优先权: JP2011-129051 20110609
- 主分类号: H01M10/0587
- IPC分类号: H01M10/0587
摘要:
A negative electrode for a nickel-hydrogen rechargeable battery is a strip-shaped negative electrode, the negative electrode being formed of a core body and a negative mixture layer covering the core body and containing hydrogen-storage alloy particles, including a main section, both sides of which face the positive electrode with the separator intervening therebetween as viewed in a rolled state where the negative electrode forms the electrode group with the positive electrode and the separator, and an outermost circumferential portion and an innermost circumferential portion that are protruding from ends of the main section in a rolling direction and facing the positive electrode with the separator intervening therebetween only with one side, wherein the hydrogen-storage alloy particles contained in the outermost circumferential portion and the innermost circumferential portion have an average diameter larger than an average diameter of the hydrogen-storage alloy particles contained in the main section.
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