发明授权
- 专利标题: Non-sintered nickel electrode for alkaline storage battery
- 专利标题(中): 碱性蓄电池用非烧结镍电极
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申请号: US124916申请日: 1998-07-30
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公开(公告)号: US6060195A公开(公告)日: 2000-05-09
- 发明人: Katsuhiko Shinyama , Reizo Maeda , Yoshinori Matsuura , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
- 申请人: Katsuhiko Shinyama , Reizo Maeda , Yoshinori Matsuura , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
- 申请人地址: JPX Osaka
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX9-278117 19970924
- 主分类号: B22F1/02
- IPC分类号: B22F1/02 ; H01M4/32 ; H01M4/52 ; H01M10/30 ; H01M4/48
摘要:
In the non-sintered nickel electrode for an alkaline storage battery according to the present invention, the active material powder is made up of composite particles, each comprising a nickel hydroxide-containing core particle and a shell layer coating the nickel hydroxide-containing core particle, the shell layer containing a bismuth-containing compound, or is made up of composite particles, each comprising a nickel hydroxide-containing core particle, an inner shell layer coating the nickel hydroxide-containing core particle and an outer shell layer coating the inner shell layer, the inner shell layer containing a bismuth-containing compound and the outer shell layer containing cobalt metal, cobalt monoxide, cobalt hydroxide, cobalt oxyhydroxide or a sodium-containing cobalt compound prepared by adding an aqueous solution of sodium hydroxide to cobalt metal, cobalt monoxide, cobalt hydroxide or cobalt oxyhydroxide to obtain a mixture and heat-treating the mixture in the presence of oxygen. Provided is a non-sintered nickel electrode for an alkaline storage battery, having a high active material utilization rate not only when charged at normal temperatures but also when charged at high temperatures, and having good charge-discharge cycle characteristics.
公开/授权文献
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