发明授权
- 专利标题： Positive electrode active material for alkaline storage batteries, positive electrode for alkaline storage batteries, and alkaline storage battery
- 专利标题（中）： 碱性蓄电池用正极活性物质，碱性蓄电池用正极和碱性蓄电池
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申请号： US09745668申请日： 2000-12-26
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公开(公告)号： US06521377B2公开(公告)日： 2003-02-18
- 发明人: Takeshi Ogasawara , Mitsunori Tokuda , Nobuyuki Higashiyama , Yasuhiko Itoh
- 申请人： Takeshi Ogasawara , Mitsunori Tokuda , Nobuyuki Higashiyama , Yasuhiko Itoh
- 优先权： JP11-368530 19991227
- 主分类号： H01M432
- IPC分类号： H01M432
摘要：
In a positive electrode active material for alkaline storage batteries according to the present invention, a surface of a nickel hydroxide is coated with a mixed crystal material of at least one type of element selected from aluminum Al, manganese Mn, iron Fe, yttrium Y, ytterbium Yb, erbium Er, and gadolinium Gd and cobalt, the valence of nickel in the nickel hydroxide is in the range of 2.0 to 2.3, and the valence of cobalt in the mixed crystal material exceeds 3.0. The positive electrode active material for alkaline storage batteries is used for a positive electrode for alkaline storage batteries, and the positive electrode for alkaline storage batteries is further used for an alkaline storage battery.