Nickel electrode for akaline storage cell and manufacturing method of the same

摘要

A nickel electrode for an alkaline storage cell manufactured by the steps of precipitating cobalt hydroxide on the surface of a first nickel active material essentially composed of nickel hydroxide, subjecting the first nickel active material to heat treatment under the presence of an alkaline solution and oxygen to that the cobalt hydroxide precipitated on the first nickel active material is disordered to its crystal structure and is formed in a higher order cobalt compound containing alkaline cation, and mixing the first nickel active material subjected to the alkali heat treatment with a second nickel hydroxide active material essentially composed of nickel hydroxide without forming any conductive substance of lower in dissolubility to the alkaline solution.