| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of obtaining a nickel electrode material in which the discharge reserve can be reduced and a high utilization rate of the active material can be obtained. SOLUTION: This is a manufacturing method of a nickel electrode material that comprises an oxidation treatment process in which a positive electrode active material, in which a covering layer made of a lower-grade cobalt compound is formed on the surface of the positive electrode active material particles made of nickel hydroxide solid solution, is wetted in a water solution of an oxidizer and an alkaline water solution of 30-40 wt.%, and heated at a temperature of 70-120 deg.C in the wet condition. |
