Accession Number : ADD015009

Title :   Externally Heated Thermal Battery.

Descriptive Note : Patent, Filed 24 Aug 89, patented 9 Apr 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

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

Report Date : 09 Apr 1991

Pagination or Media Count : 6

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 lto 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. (Author)

Descriptors :   ACTIVATION, ELECTRIC IGNITERS, ELECTRIC PRIMERS, ELECTROLYTES, ELECTRONIC EQUIPMENT, EXPLOSIONS, EXTERNAL, FUNCTIONS, HAZARDS, HEAT, HEATING, INACTIVATION, IRON, MELTING, ORDNANCE, POWER, PYROTECHNICS, SULFIDES, TEMPERATURE, THERMAL BATTERIES

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE