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Title: Ion conducting polymers and polymer blends 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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1377828
Assignee:
The University of North Carolina at Chapel Hill EFRC
Patent Number(s):
9,748,604
Application Number:
14/436,603
Contract Number:
SC0001011
Resource Relation:
Patent File Date: 2013 Oct 17
Research Org:
The University of North Carolina at Chapel Hill, Chapel Hill, NC (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

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