Externally heated thermal battery

Details Externally heated thermal battery Externally heated thermal battery

1989-08-24

1991-04-09

Hunt, Brooks H.

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to heat

429103, H01M 636, H01M 436

Patent

active

050064290

ABSTRACT:
A thermal battery activated by external heat comprising an anode, e.g. composed of a lithium-aluminum alloy, a cathode, e.g. composed of iron disulfide, and an electrolyte, e.g. a lithium chloride-potassium chloride eutectic, the electrolyte being inactive at ambient temperature but being activated by melting at a predetermined temperature when exposed to external heating. The battery can be used as a sensor or to ignite pyrotechnic and power electronic devices, in a system for reducing the hazard of ordnance exposed to detrimental heating. A particular application is the use of the battery to activate a squib to function in conjunction with one or more other components, to vent an ordnance case, preventing its explosion in a fire.

REFERENCES:
patent: 3933520 (1976-01-01), Gay et al.
patent: 3946675 (1976-03-01), Stalfors
patent: 4013818 (1977-03-01), Askew et al.
patent: 4189529 (1980-02-01), Birt et al.
patent: 4338560 (1982-06-01), Lemley
patent: 4555455 (1985-11-01), Fletcher et al.
patent: 4585713 (1986-04-01), Pathe et al.
patent: 4700099 (1987-10-01), Iden
Murphy et al., Metal Chalcogenides-Batteries, Journal of Crystal Growth v 39, 1977, pp. 185-199.

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