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ION CONDUCTING POLYMERS AND POLYMER BLENDS FOR ALKALI METAL ION BATTERIES

United States Patent Application

20150288028
A1
View the Complete Application at the US Patent & Trademark Office
Electrolyte compositions for batteries such as lithium ion and lithium air batteries are described. In some embodiments the compositions are liquid compositions comprising (a) a homogeneous solvent system, said solvent system comprising a perfluropolyether (PFPE) and polyethylene oxide (PEO); and (b) an alkali metal salt dissolved in said solvent system. In other embodiments the compositions are solid electrolyte compositions comprising: (a) a solid polymer, said polymer comprising a crosslinked product of a crosslinkable perfluropolyether (PFPE) and a crosslinkable polyethylene oxide (PEO); and (b) an alkali metal ion salt dissolved in said polymer. Batteries containing such compositions as electrolytes are also described.
DeSimone, Joseph M. (Los Gatos, CA), Pandya, Ashish (Morrisville, NC), Wong, Dominica (Carrboro, NC), Vitale, Alessandra (Torino, IT)
14/ 436,603
October 17, 2013
GOVERNMENT SUPPORT [0002] This invention was made with government support under Grant No. DE-SC0001011 from the Department of Energy. The US Government has certain rights to this invention.