Blocked (inert) electrode/solid electrolyte interface in chronoamperometric and chronopotentiometric charging modes

Abstract

The operational impedance technique in two modes (chronoamperometric and chronopotentiometric) was used to study the kinetics of the charging process of the blocked (inert) electrode/solid electrolyte interface in the case of small and large charging times. The case of slow diffusion and adsorption-desorption of a given species type, i.e., rigid lattice defects in solid electrolyte (minor charge carriers), is analyzed. It is shown that in the chronopotentiometric mode, analytical current-time relationships differ at small charging times and at large charging times. It is found in the chronoamperometric mode that formation of a double electric layer at the blocked electrode/solid electrolyte interface occurs much faster at large times than at small times.