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High Efficiency Nickel-Iron Battery

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A rechargeable battery includes an iron electrode comprising carbonyl iron composition dispersed over a fibrous electrically conductive substrate. The carbonyl iron composition includes carbonyl iron and at least one additive. A counter-electrode is spaced from the iron electrode. An electrolyte is in contact with the iron electrode and the counter-electrode such that during discharge. Iron in the iron electrode is oxidized with reduction occurring at the counter-electrode such that an electric potential develops. During charging, iron oxides and hydroxides in the iron electrode are reduced with oxidation occurring at the counter-electrode (i.e., a nickel electrode or an air electrode).
NARAYAN, Sri R. (Arcadia, CA), MANOHAR, Aswin K. (Los Angeles, CA), YANG, Chenguang (Arcadia, CA), PRAKASH, G. K. Surya (Hacienda Heights, CA), Aniszfeld, Robert (Los Angeles, CA)
14/ 494,154
September 23, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] The invention was made with Government support under Contract No. DE-AR0000136 awarded by the Advanced Research Projects Agency-Energy--U.S. Department of Energy. The Government has certain rights to the invention.