Effect of temperature on the impedance of a lithium/nonaqueous solution interface

Impedance of a lithium electrode in a lithium perchlorate solution in a pro pylene carbonate + dimethoxyethane mixed solvent is measured at 0.1-200 kHz and 0-55 degreesC. The impedance is determined by electrical processes occ urring in the passive solid-electrolyte film on the lithium surface. The te mperature dependences of parameters of the equivalent circuit related to th e passive him are described by Arrhenius-type exponential functions. The ac tivation energies for the conduction and diffusion and the energy of format ion of mobile charge carriers in the solid-electrolyte layer are determined .