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PREFORMATION OF STABLE SOLID ELECTROLYTE INTERFACE FILMS ON GRAPHITE-MATERIAL ELECTRODES

United States Patent Application

20160126582
A1
View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Disclosed are preformed solid electrolyte interface (SEI) film graphite electrodes in lithium-sulfur based chemistry energy storage systems and methods of making the preformed SEI films on graphite electrodes to expand the use of graphite-based electrodes in previously non-graphite anode energy systems, such as lithium-sulfur battery systems. Also disclosed are lithium-ion sulfur battery systems comprising electrolytes that do not include an alkyl carbonate, such as those that do not include EC, and graphite anodes having preformed alkyl carbonate, such as EC-based SEI films.
Xiao, Jie (Richland, WA), Shao, Yuyan (Richland, WA), Lu, Dongping (Richland, WA), Bennett, Wendy D. (Kennewick, WA), Liu, Jun (Richland, WA), Zhang, Ji-Guang (Richland, WA), Graff, Gordon L. (West Richland, WA)
Battelle Memorial Institute
14/ 529,840
October 31, 2014
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT [0001] This invention was made with Government support under Contract DE-AC05-76RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.