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Lithium sulfide compositions for battery electrolyte and battery electrode coatings

United States Patent

December 3, 2013
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Method of forming lithium-containing electrolytes are provided using wet chemical synthesis. In some examples, the lithium containing electrolytes are composed of .beta.-Li.sub.3PS.sub.4 or Li.sub.4P.sub.2S.sub.7. The solid electrolyte may be a core shell material. In one embodiment, the core shell material includes a core of lithium sulfide (Li.sub.2S), a first shell of .beta.-Li.sub.3PS.sub.4 or Li.sub.4P.sub.2S.sub.7, and a second shell including one of .beta.-Li.sub.3PS.sub.4 or Li.sub.4P.sub.2S.sub.7 and carbon. The lithium containing electrolytes may be incorporated into wet cell batteries or solid state batteries.
Liang; Chengdu (Knoxville, TN), Liu; Zengcai (Oak Ridge, TN), Fu; Wunjun (Oak Ridge, TN), Lin; Zhan (Knoxville, TN), Dudney; Nancy J. (Knoxville, TN), Howe; Jane Y. (Oak Ridge, TN), Rondinone; Adam J. (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 463,451
May 3, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under Contract Number DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC. The U.S. government has certain rights in this invention.