Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1294430 | Journal of Power Sources | 2008 | 5 Pages |
Abstract
A two-dimensional two-phase model is used to analyze the effects of anisotropic electrical resistivity on current density and temperature distribution in a PEM fuel cell. It is observed that a higher in-plane electrical resistivity of the gas diffusion layer (GDL) adversely affects the current density in the region adjacent to the gas channel and generates slightly higher current densities in the region adjacent to the current collector. Also, in case of GDLs with high anisotropic thermal conductivity, the maximum and minimum temperatures in a cathode catalyst layer depend on the average current density and not the local current density.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Chaitanya J. Bapat, Stefan T. Thynell,