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

Chaitanya J. Bapat; Stefan T. Thynell

doi:10.1016/j.jpowsour.2008.06.016

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

Chaitanya J. Bapat, Stefan T. Thynell

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

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.

Original language	English (US)
Pages (from-to)	428-432
Number of pages	5
Journal	Journal of Power Sources
Volume	185
Issue number	1
DOIs	https://doi.org/10.1016/j.jpowsour.2008.06.016
State	Published - Oct 15 2008

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.jpowsour.2008.06.016

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

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.",

author = "Bapat, {Chaitanya J.} and Thynell, {Stefan T.}",

note = "Funding Information: Funding from the National Science Foundation (Grant No. CTS-0226095) is gratefully acknowledged.",

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AU - Bapat, Chaitanya J.

AU - Thynell, Stefan T.

N1 - Funding Information: Funding from the National Science Foundation (Grant No. CTS-0226095) is gratefully acknowledged.

PY - 2008/10/15

Y1 - 2008/10/15

N2 - 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.

AB - 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.

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JO - Journal of Power Sources

JF - Journal of Power Sources

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ER -

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

Abstract

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