Process for preparing manganese(III)-containing nickel hydroxide

摘要

A Mn contg. Ni(OH)2 powder, in which more than 50 mol.% of the Mn is in the (III) oxidation state is prepd. by co-precipitation from Ni (II) and Mn salt solns. with alkaline hydroxide, the Mn being converted to the (III) oxidn. state by suitable oxidising agents. Also claimed is the use of the powder as an electrode material in secondary batteries.