Hydrogen absorbing alloy for alkaline storage battery, method for manufacturing the same and alkaline storage battery

摘要

A hydrogen absorbing alloy for a negative electrode in which a layer having at least a 10 weight % oxygen concentration is formed on a surface of particles of the alloy, and the magnesium concentration of the layer is 3.0~7.5 times as great as that in the central part of the particles where the oxygen concentration is less than 10 weight %.