Lithium sulfuryl chloride battery. Semiannual report, 1 Dec 1974--31 May 1975. [Replacing cathode of this primary battery renewed cell activity]

LiAlCl/sub 4/ in SO/sub 2/Cl/sub 2/ was used as the electrolyte in a battery with a lithium metal anode and a carbon cathode. A preliminary conductivity value for LiAlCl/sub 4/ (2.5M) in SO/sub 2/Cl/sub 2/ at 25 C was found to be (5 +- 2) 10/sup -3/ (..cap omega..-cm)/sup -1/. A simple four-point probe conductivity measurement method has been devised in order to avoid frequency dependent impedance behavior at electrodes and to improve the precision of conductance measurement. Discharge characteristics of the cell Li/LiAlCl/sub 4/(2.5M)--SO/sub 2/Cl/sub 2//C were studied. Open circuit voltage of 3.96 V was obtained. Accumulation of reduction products on the carbon cathode decreased the life of the cell. Replacement of the cathode renewed cell activity. (GRA)