A Solid‐State Electrochemical Cell Based on Ion Conductive Ceramics

Abstract

A solid‐state electrochemical cell has been devised using a ceramic ion conducting electrolyte and ceramic electrodes which are simultaneously ion and electron conducting. Charge/discharge of the cell occurs without chemical phase change and the reaction of the cell to an electric current is therefore capacitive. The origin of the capacitance is discussed in terms of the crystal structure of the ceramic used and the transient electrical characteristics described in terms of diffusion theory. Possible applications are suggested.