Accession Number : AD0779477

Title :   Lithium - Inorganic Electrolyte Batteries.

Descriptive Note : Quarterly rept. no. 2, 16 Dec 73-15 Mar 74,

Corporate Author : EIC INC NEWTON MASS

Personal Author(s) : Cogley,David R. ; Turchan,Michael J.

Report Date : MAY 1974

Pagination or Media Count : 42

Abstract : An all-inorganic electrolyte, lithium primary battery operable over the temperature range - 40 to +160F is being evaluated. The desired energy density is 150 watt-hours per pound of total battery weight and the desired power density is 50 watts per pound. Discharge characteristics of the Li/LiAlCl(4-)SOCl2/C system were obtained at -40, +72, and 160F. Chemical analysis of precipitates formed in carbon electrodes of cells discharged at ambient temperature provided information on reaction stoichiometry. For each equivalent of Li oxidized, one mole of LiCl precipitated in or on the carbon electrode. The weight gain of the carbon electrode was due solely to LiCl precipitation. No other insoluble salt was formed. There was evidence for sulfur formation on discharge at -40F. Pressures were observed when cells were discharged at 160F. They are higher than the expected SOCl2 vapor pressures, and result from gases not condensible at room temperature. (Modified author abstract)

Descriptors :   *Primary batteries, Carbon black, Cathodes, Performance(Engineering), Temperature, Chemical reactions, Lithium, Chlorine, Chlorides, Sulfur compounds

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE