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US 5,691,080 AGranted
Method of preparing thin film polymeric gel electrolytes
AssigneeSandia Corporation
InventorsDora K. Derzon, Charles Arnold, Jr.
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Abstract
Novel hybrid thin film electrolyte, based on an organonitrile solvent system, which are compositionally stable, environmentally safe, can be produced efficiently in large quantity and which, because of their high conductivities .apprxeq.10.sup.-3 .OMEGA..sup.-1 cm.sup.-1 are useful as electrolytes for rechargeable lithium batteries.
Claims10
A method of preparing a thin film polymer gel electrolyte comprising the steps of:
- a) dissolving a lithium salt and a gel forming polymer in a solvent comprising ethylene carbonate and an organonitrile to form a solution;
- b) spreading the solution to form a thin film;
- and
- c) removing a portion of the solvent from the film to initiate gelation.
1 more element
Dependencies are inferred from the claim text.