Patent ID: 6015538
Filing Date: 2000-01-18
Classification: C01G,C01P,H01M,Y02E

Abstract:
A process for precipitating additives with nickel hydroxide comprising the steps of:a) providing an aqueous ammonia solution containing nickel hydroxide seeds;b) introducing at least one metallic additive into said aqueous solution to create an aqueous slurry having a reducing potential, said additive being selected from the group consisting of aluminum, cadmium, cobalt, indium, iron, manganese and zinc;c) introducing oxygen into said aqueous slurry at a rate that maintains said reducing potential of said aqueous slurry; andd) dissolving said at least one additive into said aqueous solution in excess of the solubility limit of said aqueous solution to precipitate the additive in the form of a hydroxide on said nickel hydroxide seeds.