MANUFACTURE OF PASTE-TYPE NICKEL ELECTRODE, THE PASTE TYPE NICKEL ELECTRODE, AND ALKALINE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a paste-type nickel electrode of an improved utilization factor and high-temperature charge acceptability. SOLUTION: Powder comprising nickel hydroxide grains coated with β-cobalt hydroxide charged in a three-dimensional porous collector is thermally oxidized in air, and β-cobalt hydroxide coating becomes coating comprising cobalt oxyhydroxide and tricobalt tetraoxide. An alkaline secondary battery chargeable at high temperature in a short time is also provided by executing initial charge at 35 deg.C or higher to an alkaline secondary battery provided with a paste-type nickel electrode as a positive electrode.