Effect of anisotropic electrical resistivity of gas diffusion layers (GDLs) on current density and temperature distribution in a Polymer Electrolyte Membrane (PEM) fuel cell

被引：27

作者：

Bapat, Chaitanya J. ^{[1
]}

Thynell, Stefan T. ^{[1
]}

机构：

[1] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA

来源：

JOURNAL OF POWER SOURCES | 2008年 / 185卷 / 01期

基金：

美国国家科学基金会;

关键词：

PEM fuel cell; Electrical resistivity; Anisotropy; Two-phase;

D O I：

10.1016/j.jpowsour.2008.06.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：428 / 432

页数：5

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