High temperature dischargeable galvanic primary element having a

Details High temperature dischargeable galvanic primary element having a High temperature dischargeable galvanic primary element having a

1988-03-30

1990-01-30

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

429222, H01M 610

Patent

active

048973238

ABSTRACT:
A primary element is provided which is dischargeable at high temperatures comprising an alkaline electrolyte in a metallic annular cylindrical housing which encloses in inwardly directed concentric order: an outer positive silver oxide or manganese dioxide electrode in the form of a pressed powder cylinder and an inner negative electrode comprising a concentrically wound cadmium electrode wherein said negative electrode is separated from said positive electrode by a separator interposed therebetween. In storage and testing it has been shown that cells produced in accordance with the present invention may be kept at temperatures of the order of 200.degree. C. for over six weeks without any loss of operability.

REFERENCES:
patent: 3257238 (1966-06-01), Andre
patent: 3945847 (1976-03-01), Kordesch et al.
patent: 4185144 (1980-01-01), Ames et al.
patent: 4650680 (1987-03-01), Brenner et al.

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