Solid state electrochemical cell

Details Solid state electrochemical cell Solid state electrochemical cell

1984-11-27

1985-12-03

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429198, H01M 616

Patent

active

045566151

ABSTRACT:
A solid state electrochemical cell comprises an anode having at least one alkali metal as its active material, a cathode and an electrolyte comprising an anion and a cation comprising at least one electrolytically active alkali metal ion.
The anion is at least partially immobilized by it constituting part of a polymer, chain, e.g. as the poly (methacryloyl-oxy-benzoate) or poly (2-(4-carboxyhexafluorobutanoyl-oxy-)ethylmethacrylate ions, thereby to overcome problems associated with mobile anions. The cation is preferably Li.sup.+ and a polymer such as poly (ethylene oxide) may be blended into the electrolyte to improve its mechanical properties.

REFERENCES:
patent: 3704174 (1972-11-01), Berger
patent: 4060673 (1977-11-01), Dey
patent: 4241149 (1980-12-01), Lobes et al.
patent: 4303748 (1981-12-01), Armand et al.
patent: 4357401 (1982-11-01), Andre et al.
patent: 4365009 (1982-12-01), Grimes et al.

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