Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1982-07-07
1983-08-30
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429245, 429232, 296235, H01M 458, H01M 466
Patent
active
044017146
ABSTRACT:
The corrosion rate of low carbon steel within a positive electrode of a high-temperature, secondary electrochemical cell that includes FeS as active material is substantially reduced by incorporating therein finely divided iron powder in stoichiometric excess to the amount required to form FeS in the fully charged electrode. The cell typically includes an alkali metal or alkaline earth metal as negative electrode active material and a molten metal halide salt as electrolyte. The excess iron permits use of inexpensive carbon steel alloys that are substantially free of the costly corrosion resistant elements chromium, nickel and molybdenum while avoiding shorten cell life resulting from high corrosion rates.
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patent: 4110517 (1978-08-01), Arntzen
patent: 4313259 (1982-02-01), Kaun et al.
ANL-79-94, High-Performance Batteries for Electric-Vehicle Propulsion and Stationary Energy Storage, ANL Progress Report, Oct. 1978-Sep. 1979, pp. 31, 36-40 and 159-161, 1980.
ANL-81-65, Lithium/Iron Sulfide Batteries for Electric-Vehicle Propulsion and Other Application, ANL Progress Report, Oct. 1980-Sep. 1981, pp. 31 & 32, Feb. 1982.
ANL-81-38, ANL Chemical Engineering Division Annual Technical Report, 1980, pp. 4 and 25, distributed Sep. 1, 1981.
ANL-80-38, Lithium/Iron Sulfide Batteries for Electric-Vehicle Propulsion and Other Applications, ANL Progress Report for Oct. 1979-Sep. 1980, p. 146, distributed Jul. 28, 1981.
Battles James E.
Otto Neil C.
Smaga John A.
Warner Barry T.
Besha Richard G.
Fisher Robert J.
Glenn Hugh W.
The United States of America as represented by the United States
Walton Donald L.
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