发明授权
- 专利标题： Hydrogen absorbing alloy electrode, electrode producing method and alkali storage battery
- 专利标题（中）： 吸氢合金电极，电极制作方法和碱蓄电池
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申请号： US09913013申请日： 2001-08-08
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公开(公告)号： US06660431B1公开(公告)日： 2003-12-09
- 发明人: Sou Kuranaka , Akihiro Maeda , Yoshio Moriwaki
- 申请人： Sou Kuranaka , Akihiro Maeda , Yoshio Moriwaki
- 主分类号： H01M458
- IPC分类号： H01M458
摘要：
The present invention relates to a hydrogen storage alloy electrode composed of a hydrogen storage alloy having a CaCu5 region and a Ce2Ni7 region in the crystal structure and satisfies the relational formula: p:q=1:(4+a), where p is the sum of the mole fraction of an element occupying the Ca site of the CaCu5 region and the mole fraction of an element occupying the Ce site of the Ce2Ni7 region, q is the sum of the mole fraction of an element occupying the Cu site of the CaCu5 region and the mole fraction of an element occupying the Ni site of the Ce2Ni7 region, and −0.2≦a≦0.4. Accordingly, although the hydrogen storage alloy electrode contains a little or no Co, it is possible to obtain an electrode having little deterioration due to pulverization of the alloy and a high capacity.
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