Non woven gel electrolyte for electrochemical cells

Details Non woven gel electrolyte for electrochemical cells Non woven gel electrolyte for electrochemical cells

1996-09-23

1997-09-09

Diamond, Alan

Compositions

Electrolytes for electrical devices

429190, 429192, H01M 1040, H01G 9025

Patent

active

056652658

ABSTRACT:
An electrolyte system (40) for use in connection with an electrochemical cell (10). The cell (10) includes a positive electrode (20) and a negative electrode (30) with the electrolyte system (40) disposed therebetween. The electrolyte system is a polymer gel electrolyte system including a liquid electrolyte species which may be either aqueous or non-aqueous and a polymer gel electrolyte support structure. The polymer gel electrolyte support structure includes at least an non woven first polymer and a second polymer which is adapted to absorb the electrolyte active species. The first polymer is a fibrous polymer to reduce swelling of the gel electrolyte in the presence of the electrolyte active species, and further to enhance mechanical integrity of the support structure.

REFERENCES:
patent: 3918995 (1975-11-01), Palmer et al.
patent: 3947537 (1976-03-01), Buntin et al.
patent: 5456000 (1995-10-01), Gozdz et al.
patent: 5478668 (1995-12-01), Gozdz et al.
patent: 5597659 (1997-01-01), Morigaki et al.
patent: 5605549 (1997-02-01), Zucker

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