Catalyst containing solid electrolytes

Details Catalyst containing solid electrolytes Catalyst containing solid electrolytes

1994-06-27

1996-12-03

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 429194, 204421, 252 622, 252500, H01M 616

Patent

active

055806805

ABSTRACT:
A solid electrolyte that includes (1) a first catalyst that is capable of initiating the polymerization of solvent components at elevated temperatures in order to increase the resistance (or impedance) of the solid electrolyte and thereby prevent thermal runaway and/or (2) a second catalyst that is capable of initiating the polymerization of flammable substances (e.g., olefins) in the solvent and batteries make therefrom are provided. To assure that the catalysts do not prematurely initiate polymerization below a certain temperature, the catalysts may be microencapsulated within a heat sensitive material that disintegrates or dissolve at a predetermined elevated temperature to release the catalysts. Microencapsulation permits the controlled release of the catalysts into the electrolyte under the appropriate conditions.

REFERENCES:
patent: 4195014 (1980-03-01), Dorfmann et al.
patent: 5001023 (1991-03-01), Cheshire et al.
patent: 5096561 (1992-03-01), Akhtar
patent: 5169736 (1992-12-01), Bittihne et al.
patent: 5354631 (1994-10-01), Chaloner-Gill
Odian, George, "Principles of Polymerization", 2nd edition, John Wiley and Sons, New York, 1981, pp. 194-197, 342-349, and 508-511.

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