Chemistry: electrical current producing apparatus – product – and – Fluid active material or two-fluid electrolyte combination... – Active material in molten state
Patent
1984-11-23
1985-08-13
Lefevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Fluid active material or two-fluid electrolyte combination...
Active material in molten state
429112, H01M 436
Patent
active
045350370
ABSTRACT:
A thermally activated electrochemical cell utilizes a lithium-boron anode and a molten nitrate electrolyte selected from the group consisting of lithium nitrate, a mixture of lithium nitrate and sodium nitrate, a mixture of lithium nitrate and potassium nitrate, and a mixture of lithium nitrate and sodium nitrate with potassium nitrate, to provide improved cell electrical performance. The electrolyte is contained on a fiberglass separator and the electrolyte adjacent to the cathode may contain silver nitrate as well. Current densities over 300 mA/cm.sup.2 with a usable temperature range of over 150.degree. C. have been obtained. Anode open circuit potentials of about 3.2 V were found with little polarization at 100 mA/cm.sup.2 and with very slight polarization at 300 mA/cm.sup.2.
REFERENCES:
patent: 4068045 (1978-01-01), Abrams
patent: 4162352 (1979-07-01), Sutula et al.
patent: 4260667 (1981-04-01), Miles et al.
Jour. Electrochem. Soc., vol. 131, No. 2, Feb. 1984, pp. 286-289, "The Lium-Boron Alloy Anode in Molten Nitrate Electrolytes".
Journal of the Electrochemical Society, vol. 129, No. 6, p. 1168, Discharge Characteristics of Lithium-Boron Alloy Anode in Molten Salt Thermal Cells.
Fletcher Aaron N.
McManis, III George E.
Miles Melvin H.
Beers Robert F.
Hennen Thomas W.
LeFevour Charles F.
Skeer W. Thom
The United States of America as represented by the Secretary of
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