Electrode or Cell Models Applied to Ohmic Resistance-Dominated Cells

2 Diagnostic Modelling oi Electrodes to Elucidate Reaction Mechanisms Because the electrode kinetics of both anode and cathode and their dependence on microstructure are so important for performance, much attention has been given to elucidating reaction mechanisms based on independent electrochemical measurements (usually with respect to a reference electrode). AC impedance measurements are particularly favoured. The interpretation of these measurements requires specialised models that reflect in part the hypothesised kinetics and in part the electrode structure. It seems certain that 

3 Models of Mixed Ionic and Electronic Conducting (MIEC) Electrodes These specialised electrode models usually consider the MIEC electrode in combination with the electrolyte and focus on correlating performance with the semiconductor characteristics of the electrode (and sometimes electrolyte) [70-72]. Recent modelling of oxygen reduction and oxygen permeation at perovskite electrodes includes both MIEC effects and classical diffusion-type analysis [73-75]. 

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