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Ni/metal hydride secondary element

United States Patent Application

20020042000
A1
View the Complete Application at the US Patent & Trademark Office
A Ni/metal hydride secondary element having a positive nickel hydroxide electrode, a negative electrode which contains a hydrogen storage alloy, and an alkaline electrolyte, wherein the positive electrode, which is provided with a three-dimensional metallic conductive structure, also contains a nickel hydroxide whose grains are coated with discrete particles composed of metallic copper. The mass of the copper coating is about 0.2 to about 15 % by weight, preferably about 5 to about 10% by weight, of the mass of nickel hydroxide. The nickel hydroxide material coating is produced by non-electrical chemical deposition in an alkaline environment.
Bauerlein, Peter (Lindwedel, DE)
NBT GmbH
09/ 908,866
July 19, 2001
[0001] The Government of the United States of America has rights in this invention pursuant to cooperative Agreement No. DE-F C02-95EE 50425 awarded by the U.S. Department of Energy.