ALKALINE STORAGE BATTERY, AND POSITIVE ELECTRODE THEREFOR

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PROBLEM TO BE SOLVED : To improve the capacity of an alkaline battery under an ordinary temperature and a high temperature without increasing the amount of a rare earth compound contained in the alkaline battery. SOLUTION : Positive electrode mixture paste for an alkaline battery contains an active material of nickel hydroxide powder, and a rare earth compound having an average particle diameter of 50 to 200 nm. Reducing the average particle diameter of the rare earth compound to 50 to 200 nm allows a rare earth oxide to be present more uniformly in a metal cobalt or a cobalt oxide, which leads to less hampering of an oxidation reaction of a conductive agent by the rare earth oxide. COPYRIGHT : (C)2008, JPO&INPIT