Modeling and Simulation of Electrochemical Cells under Applied Voltage

The results are consistent with the physical behavior of electrolytic cells under potentiostatic conditions. The time evolution of the main electrochemical parameters is in accordance with the imposed boundary/interface conditions. Interestingly, the ion flux and the electric field show slight asymmetries at the boundaries. Moreover, the model well predicts the behavior of systems, such as redox flow cells or rechargeable batteries, that can either run under applied voltage or applied current conditions. In fact, the field equations and the boundary conditions, presented here for electrolytic cells under applied voltage, can be applied also for galvanic cells under applied current. Equations and boundary conditions for applied voltage and applied current working conditions are presented in a compact form in order to emphasize differences and similarities.