A complete impedance analysis of electrochemical cells used as energy sources

• DOI: 10.1007/s10008-012-1825-1
• Publication Date: 2012-08-01T03:54:09Z
• Authors: P. Slepski; K. Darowicki; E. Janicka; G. Lentka
• Keywords: Electrochemical cell

A comprehensive description of impedance electrochemical systems has been presented, along with the assumptions method used. In this method, a multisinusoidal current excitation signal is The changes potential both electrodes and difference between these are all registered simultaneously as function time. proposed offers possibility separately determining instantaneous value each electrode well two-electrode system. short-time Fourier transform time registers allow determination in measured values over successfully verified an electrical equivalent circuit simulating non-stationary particular components during operation fuel cell under changing load have obtained.