| 简介 |
PROBLEM TO BE SOLVED : To improve charge accepting characteristics without deteriorating high-rate discharge characteristics of a nickel electrode for an alkaline storage battery. SOLUTION : With the positive electrode active substance for the alkaline storage battery equipped with a core layer including nickel hydroxide and a surface layer including a cobalt compound and coating the core layer, the surface layer is made of a hydroxide including cobalt and at least one kind of rare-earth element of which, the oxidation number of the cobalt contained in the surface layer is to be three or more. |
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