Ionically conductive polymer gels

Details Ionically conductive polymer gels Ionically conductive polymer gels

1995-06-06

1997-06-17

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429190, 429194, 252 622, 252500, 252518, 204414, H01M 616

Patent

active

056395744

ABSTRACT:
A bulk ionically conductive polymer gel is prepared by dissolving a salt such as lithium trifluoromethanesulphonate (which would provide lithium ion conductors) in an organic compound such as N-formylpiperidine. The organic compound dissolves the salt at 20.degree. C. but is not a solvent at 20.degree. C. (though it is at 215.degree. C.) for polyethylene terephthalate. The last-named is a crystallizable polymer which is added in a minor amount at a high temperature to the other components and provides the required mechanical rigidity for the product at lower temperatures.

REFERENCES:
patent: 4948685 (1990-08-01), Ohsawa et al.
patent: 4952293 (1990-08-01), Sypula et al.
patent: 5437804 (1995-08-01), Yamamoto

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