ALKALINE BATTERY

摘要

An alkaline battery containing spherical oxyhydroxide nickel of crystal having beta-type structure as a positive electrode active substance. In the powder X-ray diffraction profile having the Cu of oxyhydroxide nickel as a target, half peak width W of diffraction peak P by (001) face is 0.6˚or less. The ratio H/W of the height H of peak P to the half peak width W is 10000 or above. Mean valence number of nickel contained in the spherical oxyhydroxide nickel is 2.95 or above. When such oxyhydroxide nickel is employed, an alkaline battery exhibiting excellent heavy load discharge characteristics and having an enhanced energy density can be attained.