PROBLEM TO BE SOLVED: To solve a problem that in order to obtain an electrode material for an alkaline storage battery which has a high activity from an initial charge/discharge and is superior in the discharging characteristics, from a low temperature to an ambient temperature, hydrogen storage alloy is treated in an alkaline solution or an acid aqueous solution and a nickel layer of a metal state is formed on the surface of the hydrogen storage alloy, but that formation of a nickel-condensed layer only causes a compositional change in the hydrogen storage alloy, after a surface-treatment for reducing the capacity in the battery characteristics and for making durability deteriorate.
SOLUTION: An anode alloy composition is specified by an alloy composition, after a surface treatment of the hydrogen storage alloy, as an anode 2 and this does not make the capacity and lifetime deteriorate, at structuring an alkaline storage battery, and an alkaline storage battery superior in the output characteristics at a low temperature and moreover, which is superior in charge/discharge characteristics can be obtained.
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