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GRAPHENE-COATED METAL OXIDE SPINEL CATHODES

United States Patent Application

20170110720
A1
View the Complete Application at the US Patent & Trademark Office
Disclosed herein are graphene-coated lithium manganese oxide spinels cathodes for high-performance batteries Li-ion batteries and methods for making thereof. A single-layer graphene coating is shown to significantly reduce manganese loss in the cathodes while concurrently promoting the formation of a well-defined solid electrolyte interphase layer.
Hersam, Mark C. (Wilmette, IL), Jaber Ansari, Laila (Mountain View, CA), Puntambekar, Kanan P. (Cupertino, CA), Thackeray, Michael M. (Naperville, IL)
NORTHWESTERN UNIVERSITY (EVANSTON IL), UCHICAGO ARGONNE, LLC (CHICAGO IL)
15/ 293,909
October 14, 2016
STATEMENT OF GOVERNMENT INTEREST [0001] This invention was made with government support under DE-AC02-06CH11357 (Argonne National Laboratories subcontract to Northwestern University, 4F-32002) awarded by the Department of Energy. The government has certain rights in the invention.