Patent ID: 7238446
Filing Date: 2007-07-03
Classification: B29C,B29K,B29L,H01M,Y02E

Abstract:
1. An electrochemical cell, comprising: a positive electrode; a negative electrode including a hydrogen storage alloy; and an electrolyte, wherein said positive electrode comprises an active composition including a nickel hydroxide material, cobalt, cobalt oxide and a conductive polymer, the weight percentage of said conductive polymer being between about 0.1 weight percent and about 0.8 weight percent of said active composition, wherein said conductive polymer includes at least one material selected from the group consisting of polyaniline based polymers, polypyrrole based polymers, polyparaphenylene based polymers, polyacetylene based polymers, polythiophene based polymers, polyethylene based polymers, dioxythiophene based polymers, polyparaphenylenevinylene based polymers, and mixtures thereof.