Technica]l Notes @ Phase Equilibrium Studies of Lithium Halide-Containing Electrolytes

The application of fused-salt mixtures as electrolytes in electrochemical cells has resulted in increased in-terest in their physical and chemical properties. A knowledge of these properties is important in selecting appropriate lectrolytes since the choice depends on a variety of factors. For example, cells having low-melting cathode materials require low-melting elec-trolytes. Also, electrolytes with high electrical conduc-tivities are needed to reduce ohmic losses within the cell. Fused alkali halides generally meet these require-ments. Because thermodynamic stability with respect to the anode material is also an important considera-tion, electrolytes generally have been sought from among low-melting halide salts of the anode metal. The electrochemical data of Hamer et al. (1) indi