Verfahren zur Oberflächenbehandlung eines Pulvers einer Wasserstoffspeicherlegierung und ein so behandeltes Pulver enthaltende Elektrode

摘要

A method of producing a hydrogen absorbing alloy powder, which comprises a step of treating a pulverized hydrogen absorbing alloy with a solution comprising a condensed phosphoric acid having 2 to 20 phosphorus atoms, phytic acid or a mixture thereof; and a negative electrode using a hydrogen absorbing alloy powder produced by the aforesaid method, which can ensure high initial activity and high initial capacity in the nickel-hydrogen secondary battery provided therewith.