Prediction of local water distributions and performance of PEMFC using pore network modeling

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Conference Proceeding

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© The Electrochemical Society. Oxygen transport and water drainage in the cathode side Catalyst Layer (CL) affect the performance of Polymer Electrolyte Fuel Cells. A unique pore network model has been developed to track local fluxes of water, both liquid and vapor in pores and water content in the ionomer, through a fuel cell catalyst layer. The role of pore size distribution, ionomer to carbon (I/C) ratios, RH, and operating conditions on fuel cell performance has been studied. The simulations results have been used to provide insight as to how local water balances affect electrode performance.

Publication Title

ECS Transactions