Physico-chemical investigations on the electronic partial conductivity of molten electrolytes, especially of the eutectic mixture LiCl-KCl

The self-discharge of lithium-sulfur batteries caused by the electronic partial conductivity of the electrolyte was estimated. Stationary polarization measurements were used to determine the electronic conductivity in the eutectic melt LiCl-KCl at temperatures from 400 to 500 C. From investigations on the solubility of lithium in the melt, the diffusion coefficient of the conducting particles was obtained using a coulometric titration method.