发明授权
- 专利标题： Nickel-hydrogen secondary battery
- 专利标题（中）： 镍氢二次电池
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申请号： US09200890申请日： 1998-11-27
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公开(公告)号： US06200705B1公开(公告)日： 2001-03-13
- 发明人: Hirotaka Hayashida , Hiroshi Kitayama , Masaaki Yamamoto , Shusuke Inada , Isao Sakai , Tatsuoki Kono , Hideki Yoshida , Takamichi Inaba , Motoya Kanda
- 申请人： Hirotaka Hayashida , Hiroshi Kitayama , Masaaki Yamamoto , Shusuke Inada , Isao Sakai , Tatsuoki Kono , Hideki Yoshida , Takamichi Inaba , Motoya Kanda
- 优先权： JP9-329211 19971128
- 主分类号： H01M466
- IPC分类号： H01M466
摘要：
A nickel-hydrogen secondary battery having a negative electrode comprising a hydrogen-absorbing alloy containing magnesium, a rare earth element and nickel as essential elements, which is capable of suppressing the self-discharge being occurred under the condition of high temperature storage, or the like. This secondary battery comprises a negative electrode containing a hydrogen-absorbing alloy, a positive electrode containing nickel hydroxide, a separator comprising a non-woven fabric, and an alkaline electrolyte. The hydrogen-absorbing alloy is represented by (R1−xMgx)NiyAz (wherein R is at least one element selected from rare earth elements (including yttrium), Ca, Zr and Ti, A is at least one element selected from Co, Mn, Fe, V, Cr, Nb, Al, Ga, Zn, Sn, Cu, Si, P and B), and x, y and z are atomic ratio individually defined as 0