Thermal battery having iron pyrite depolarizer

Details Thermal battery having iron pyrite depolarizer Thermal battery having iron pyrite depolarizer

1977-10-31

1978-10-10

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to heat

429102, H01M 636

Patent

active

041197690

ABSTRACT:
A thermal battery comprising at least one cell, and preferably a plurality of stacked cells wherein each cell comprises an anode of a metal selected from the group consisting of alkali metals, alkaline earth metals and alloys thereof. Positioned against each cell anode is a homogeneous mixture, preferably in wafer form, of the electrolyte, depolarizer, and binder. The active depolarizer species of the present invention comprises iron pyrite (FeS.sub.2) which provides a lower internal resistance to the battery and improves start times over conventional depolarizers used in thermal batteries.

REFERENCES:
patent: 3677822 (1972-07-01), Bush
patent: 3922222 (1976-11-01), Walsh et al.
patent: 3930888 (1976-01-01), Bowser et al.
patent: 3933520 (1976-01-01), Gay et al.
patent: 4013818 (1977-03-01), Askew et al.
patent: 4044192 (1977-08-01), Bowser, Jr. et al.

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