University of North Carolina at Chapel Hill

University of California

Dominica Wong

Joseph M DeSimone

Ashish A Pandya

Nitash Balsara

Jacob Thelen

Didier Devaux

Alessandra Vitale

Liquid or solid electrolyte compositions are described that comprise a homogeneous solvent system and an alkali metal salt dissolved in said solvent system. The solvent system may comprise a fluoropolymer, having one or two terminal carbonate groups covalently coupled thereto. Batteries containing such electrolyte compositions are also described.

Ion conducting fluoropolymer carbonates for alkali metal ion batteries

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.

Ion conducting polymers and polymer blends for alkali metal ion batteries

Growing community of inventors

Carrboro, NC, United States of America

Dominica Wong