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Lipon coatings for high voltage and high temperature Li-ion battery cathodes

United States Patent

9,837,665
December 5, 2017
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
Dudney; Nancy J. (Knoxville, TN), Liang; Chengdu (Knoxville, TN), Nanda; Jagjit (Knoxville, TN), Veith; Gabriel M. (Knoxville, TN), Kim; Yoongu (Highlands Ranch, CO), Martha; Surendra Kumar (Knoxville, TN)
UT-BATTELLE, LLC (Oak Ridge, TN)
15/ 416,508
20170133686
January 26, 2017
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with government support under contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in this invention.