Accession Number : ADD015722

Title :   Ordnance Thermal Battery.

Descriptive Note : Patent, Filed 5 Nov 90, patented 27 Apr 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Pracchia, Louis ; Vetter, Ronald F ; Rosenlof, Darwin

Report Date : 27 Apr 1993

Pagination or Media Count : 7

Abstract : This invention pertains to 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 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.

Descriptors :   *PATENTS, *THERMAL BATTERIES, ORDNANCE, HEATING, EXTERNAL, ACTIVATION, IGNITION, ANODES(ELECTROLYTIC CELL), CATHODES(ELECTROLYTIC CELL), ELECTROLYTES, PYROTECHNICS

Subject Categories : Electrochemical Energy Storage
      Pyrotechnics

Distribution Statement : APPROVED FOR PUBLIC RELEASE