MANUFACTURING METHOD OF NICKEL ELECTRODE ACTIVE MATERIAL, NICKEL ELECTRODE ACTIVE MATERIAL, MANUFACTURING METHOD OF ACTIVE MATERIAL PASTE FOR NICKEL ELECTRODE, NICKEL ELECTRODE AND ALKALINE STORAGE BATTERY

摘要

PROBLEM TO BE SOLVED: To enhance safety of active material paste used for manufacturing a non-sintered type nickel electrode hardly forming discharge reserve on a negative electrode of an alkaline storage battery. SOLUTION: A substance manufacturing obtained by cleaning a high-order cobalt compound-containing nickel hydroxide-based material with an aqueous solution of acid is used in manufacturing the active material paste. The high- order cobalt compound-containing nickel hydroxide-based active material used in this case is usually obtained by oxidizing a nickel hydroxide-based material containing at least one of cobalt hydroxide and cobalt monoxide in an alkaline aqueous solution by using an oxidizer.