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LOW COST RECHARGEABLE BATTERY AND THE METHOD FOR MAKING THE SAME

United States Patent Application

20180013144
A1
View the Complete Application at the US Patent & Trademark Office
Low-cost electrochemical energy storage devices having electrochemical cells containing zinc electrodes in aqueous electrolytes, which exhibit superior cycle performance, preferably comprise the following elements: (a) a cathode formed of manganese dioxide particles, preferably doped with at least one of magnesium, strontium, barium, calcium, and lanthanum, wherein the manganese dioxide particles preferably form at least one of (1) a delta manganese dioxide structure and (2) a todokorite manganese dioxide structure; (b) an anode formed of particles comprising zinc, wherein the particles are preferably treated with at least one of bismuth, indium, gallium, antimony, and tin; (c) a mixed ion electrolyte solution with a pH greater than or equal to three and less than or equal to seven, wherein the solution preferably comprises at least one monovalent salt and at least one divalent salt; and (d) a mesh as cathode current collector comprising at least one of titanium, stainless steel, tantalum, and niobium, wherein the mesh is preferably coated by an electrically conductive and yet oxidation resistant material comprising but not limited to carbon.
LI, LIN-FENG (CROTON-ON-HUDSON, NY), CHEN, MIN (MILLWOOD, NY), FAN, QUAN (MOHEGAN LAKE, NY), DONG, XUELIANG (PEEKSILL, NY)
15/ 378,200
December 14, 2016
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] The invention described herein was made partially with financial support from the United States Government under contract No. DE-AR0000382, awarded by the ARPA-E of U.S. Department of Energy; and from the NYSERDA under contract No. 48186. The United States Government may have certain rights in this invention.