Abstract
A multi-physics coupled numerical model of solid oxide cells (SOCs) is of great significance in understanding the mechanisms of mass transfer and electrochemical reactions in the electrodes. Similar numerical approaches for SOCs have been developed using lattice Boltzmann method and finite element method. However, most of the previous works focuse on the single mode of fuel cell or electrolyser, which limits the scope of the model application. In this work, a novel multi-physics coupled numerical model of SOCs is developed under the environments of MATLAB and COMSOL to accurately predict the cell performances under both fuel cell and electrolyzer modes. The numerical simulation results are then validated using the actual electrochemical measurement results. The accuracy of the numerical model presents great potential in the optimization of microstructure in SOCs. Figure 1
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