The invention disclosed is a novel method for the preparation of a nickel/cobalt oxide impregnated nickel plaque material involving a single oxidation step. The nickel plaque material is cleaned, impregnated with an aqueous cobalt nitrate solution and dried. The nickel/cobalt oxide is then formed in...http://www.google.com.au/patents/US4391668?utm_source=gb-gplus-sharePatent US4391668 - Mixed oxide oxygen electrode
