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Ion conducting polymers and polymer blends for alkali metal ion batteries

Patent ·
OSTI ID:1377828
; ; ;

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.

Research Organization:
The University of North Carolina at Chapel Hill, Chapel Hill, NC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0001011
Assignee:
The University of North Carolina at Chapel Hill
Patent Number(s):
9,748,604
Application Number:
14/436,603
OSTI ID:
1377828
Country of Publication:
United States
Language:
English

References (11)

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Solvent-Resistant Photocurable “Liquid Teflon” for Microfluidic Device Fabrication
  • Rolland, Jason P.; Van Dam, R. Michael; Schorzman, Derek A.
  • Journal of the American Chemical Society, Vol. 126, Issue 8, p. 2322-2323 https://doi.org/10.1021/ja031657y
journal March 2004
Degradation of perfluoropolyethers catalyzed by aluminum oxide journal September 1991
Stability of perfluoroalkylethers journal May 1994
Linear perfluoropolyether difunctional oligomers: chemistry, properties and applications journal June 1999
Improved performance of lithium-ion cells with the use of fluorinated carbonate-based electrolytes journal April 2003
Photochemically Cross-Linked Perfluoropolyether-Based Elastomers: Synthesis, Physical Characterization, and Biofouling Evaluation journal September 2009
Preparation and properties of polyurethane networks based on α,ω-difunctional poly(hexafluoropropylene oxide) journal July 1995
Methacrylic-based solid polymer electrolyte membranes for lithium-based batteries by a rapid UV-curing process journal April 2011
Building better batteries journal February 2008

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25 ENERGY STORAGE
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