Nickel-series rechargeable battery and process for the production thereof

摘要

A nickel-series rechargeable battery whose cathode active material comprising a material containing an amorphous phase-bearing nickel hydroxide particulate which in X-ray diffraction using Kalpha-rays of Cu as a radiation source, has a diffraction peak of a (001) face appeared near a diffraction angle 2theta=19° having a half-value width of more than 1.2° and has a diffraction peak of a (101) face appeared near a diffraction angle 2theta=38° having a half-value width of more than 1.5°. A process for the production of said rechargeable battery.