Study on water and oxygen transfer characteristics of HT-PEM fuel cells

In this study, a steady-state model is developed by combining mechanical, Navier–Stokes, Maxwell–Stefan, and Butler–Volmer equations. This then used to investigate the influences of diffusion layer thickness deformation under specific assembly force on porosity distribution as an indicator fuel cell performance. The HT-PEM (high temperature proton exchange membrane) built using COMSOL Multiphysics software, simulating changes in different thicknesses layer, thus analyzing trends variation water oxygen concentration cathode layer. battery has current densities at operating potentials. influence working potential mass transfer areas flow channel ridge discussed. simulation results have certain reference value for optimization reveal combined effect field, which makes uneven remarkable lateral gas (GDL). thicker less consumed, large amount retained gaseous It can be concluded that conducive more uniform diffusion. These potentially promote performance application HT-PEMFC.