Cathode Active Material for Alkaline Battery and Manufacturing Method Thereof, and Alkaline Battery

摘要

The present invention is to provide a cathode active material for an alkaline battery with a lamellar crystal structure including nickel oxyhydroxide. The cathode active material has a diffraction peak at a position that ranges from 8.4 degrees to 10.4 degrees in diffraction angle 2theta by X-ray diffraction using CuKalpha-rays. In addition, the present invention provides an alkaline battery having a cathode having a cathode active material, an anode having an anode active material, and an alkaline water solution as an electrolytic solution. Furthermore, the present invention provides a manufacturing method for a cathode active material for an alkaline battery with a lamellar crystal structure including nickel oxyhydroxide. The manufacturing method has an oxidation process for manufacturing the cathode active material by oxidizing a starting material made from beta-type nickel hydroxide with a lamellar crystal structure in an airstream including alkaline water solution or alkali.