发明名称 |
Non-sintered nickel electrode for alkaline storage battery, alkaline storage battery including the same, and method for production of non-sintered nickel electrode for alkaline storage battery |
摘要 |
In the non-sintered nickel electrode for an alkaline storage battery according to the invention, a yttrium metal powder and/or a yttrium compound powder has been added to a particulate active material comprising composite particles each consisting of a nickel hydroxide core and a sodium-doped cobalt compound shell. Because the yttrium metal powder and/or yttrium compound powder inhibits the diffusion of cobalt into the nickel hydroxide core, the non-sintered nickel electrode of the invention exhibits a high utilization efficiency not only in an initial phase of charge-discharge cycling but over a long time of use. Moreover, because the yttrium metal powder and/or yttrium compound powder enhances the oxygen overpotential, the non-sintered nickel electrode for an alkaline storage battery according to the invention shows very satisfactory charge characteristics particularly at high temperatures. <IMAGE> |
申请公布号 |
EP0817291(A3) |
申请公布日期 |
2000.04.26 |
申请号 |
EP19970110499 |
申请日期 |
1997.06.26 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
YANO, MUTSUMI;NOGAMI, MITSUZO;SHINYAMA, KATSUHIKO;SATOGUCHI, KOUSUKE;TOKUDA, MITSUNORI;YONEZU, IKUO;NISHIO, KOJI;INOUE, MASAO;FUJITANI, SHIN |
分类号 |
H01M4/32;H01M4/52 |
主分类号 |
H01M4/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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