Accession Number : AD0286889

Title :   NEW CATHODE-ANODE COUPLES USING NONAQUEOUS ELECTROLYTES

Corporate Author : LOCKHEED MISSILES AND SPACE CO SUNNYVALE CALIF

Personal Author(s) : CHILTON,J.E. ; COOK,G.M.

Report Date : SEP 1962

Pagination or Media Count : 1

Abstract : New cathode-anode couples using nonaqueous electrolyt s were investigated as secondary batteries for use in orbiting satellites. A Li anode is used with either a AgCl or NiCl2 cathode in an electrolyte consisting of C3H6CO3, AlCl3, and LiCl. The solubility of lithium chloride was found to increase with increasing AlCl3 concentration. Electrical conductivity measurements showe low activation energy for conduction. Migration experiments agreed with he predicted mechanism. Electrode reactions were studied in detail. The C3H6CO3-AlCl3 electrolyte was found to be stable. Many metals were anodically oxidized in this electrolyte and found to be somewhat soluble and therefore unsuitable for use. Li metal was electrodeposited at 100% efficiency at current densities up to at least 80 ma/sq cm. NiCl2 as produced at 100% efficiency only at very low current densities, whereas AgCl was produced at 100% efficiency at current densities up to at least 72 ma/sq cm. Polarization experiments indicated that mass transport may be the limiting factor for the AgCl cathode during discharge. Electrode spacing experiments indicated that cells are limited primarily by resistance. A cell was successfully cycled at -28 C. (Author)

Descriptors :   *ANODES (ELECTROLYTIC CELL), *CATHODES (ELECTROLYTIC CELL), *POWER SUPPLIES, *STORAGE BATTERIES, ALUMINUM COMPOUNDS, CARBONATES, CHLORIDES, ELECTRIC CURRENTS, ELECTRIC POTENTIAL, ELECTRICAL CONDUCTIVITY, ELECTROCHEMISTRY, ELECTRODES, ELECTROLYTES, ELECTROLYTIC CELLS, LITHIUM, MATERIALS, METALS, NICKEL COMPOUNDS, POLARIZATION, PROPENES (3 C), SILVER COMPOUNDS, SOLUTIONS(MIXTURES), TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE