NATURE OF THE RELAXATION OF A CONSTANT PHASE ELEMENT

A model which describes the process of the charging of a metal/superio nic-conductor boundary has been proposed. The model is based on a conc eption of the fractal character of the motion of particles in a networ k of regular channels. Numerical calculations performed by the random- walk method have shown that the predictions of the model do not deviat e qualitatively from experiment and make it possible to explain the pr esence of a constant phase element in equivalent circuits of cells wit h solid electrolytes. Experimental data on the frequency dependence of the complex capacitance and the phase angle for a blocked-electrode/s olid-electrolyte boundary have also been presented.