Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell

Iwao Nitta; Olli Himanen; Mikko Mikkola

doi:10.1016/j.elecom.2007.10.029

Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell

Iwao Nitta (Corresponding Author), Olli Himanen, Mikko Mikkola

Helsinki University of Technology

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

97 Citations (Scopus)

Abstract

In this study, the electrical contact resistance between gas diffusion layer (GDL) and catalyst layer (CL) on an electrolyte membrane was experimentally evaluated as a function of compression. The contact resistances between the GDL and CL decreased nonlinearly as the GDL thickness decreased due to the compression pressure. The values of the contact resistance between the GDL and CL were found to be more than one order of magnitude larger than the contact resistance between the GDL and graphite, and even comparable to the ionic resistance of the membrane. Because of the large value and variation in contact resistance between the GDL and CL, severe current distribution may be created inside the cell. The results reported here should be highly useful in providing a more accurate picture of the transport phenomena in a fuel cell.

Original language	English
Pages (from-to)	47-51
Number of pages	5
Journal	Electrochemistry Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1016/j.elecom.2007.10.029
Publication status	Published - 2008
MoE publication type	A1 Journal article-refereed

Keywords

inhomogeneous compression
contact resistance
gas diffusion layer
catalyst layer
PEM Fuel Cell

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.elecom.2007.10.029

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title = "Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell",

abstract = "In this study, the electrical contact resistance between gas diffusion layer (GDL) and catalyst layer (CL) on an electrolyte membrane was experimentally evaluated as a function of compression. The contact resistances between the GDL and CL decreased nonlinearly as the GDL thickness decreased due to the compression pressure. The values of the contact resistance between the GDL and CL were found to be more than one order of magnitude larger than the contact resistance between the GDL and graphite, and even comparable to the ionic resistance of the membrane. Because of the large value and variation in contact resistance between the GDL and CL, severe current distribution may be created inside the cell. The results reported here should be highly useful in providing a more accurate picture of the transport phenomena in a fuel cell.",

keywords = "inhomogeneous compression, contact resistance, gas diffusion layer, catalyst layer, PEM Fuel Cell",

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pages = "47--51",

journal = "Electrochemistry Communications",

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TY - JOUR

T1 - Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell

AU - Nitta, Iwao

AU - Himanen, Olli

AU - Mikkola, Mikko

PY - 2008

Y1 - 2008

N2 - In this study, the electrical contact resistance between gas diffusion layer (GDL) and catalyst layer (CL) on an electrolyte membrane was experimentally evaluated as a function of compression. The contact resistances between the GDL and CL decreased nonlinearly as the GDL thickness decreased due to the compression pressure. The values of the contact resistance between the GDL and CL were found to be more than one order of magnitude larger than the contact resistance between the GDL and graphite, and even comparable to the ionic resistance of the membrane. Because of the large value and variation in contact resistance between the GDL and CL, severe current distribution may be created inside the cell. The results reported here should be highly useful in providing a more accurate picture of the transport phenomena in a fuel cell.

AB - In this study, the electrical contact resistance between gas diffusion layer (GDL) and catalyst layer (CL) on an electrolyte membrane was experimentally evaluated as a function of compression. The contact resistances between the GDL and CL decreased nonlinearly as the GDL thickness decreased due to the compression pressure. The values of the contact resistance between the GDL and CL were found to be more than one order of magnitude larger than the contact resistance between the GDL and graphite, and even comparable to the ionic resistance of the membrane. Because of the large value and variation in contact resistance between the GDL and CL, severe current distribution may be created inside the cell. The results reported here should be highly useful in providing a more accurate picture of the transport phenomena in a fuel cell.

KW - inhomogeneous compression

KW - contact resistance

KW - gas diffusion layer

KW - catalyst layer

KW - PEM Fuel Cell

U2 - 10.1016/j.elecom.2007.10.029

DO - 10.1016/j.elecom.2007.10.029

M3 - Article

SN - 1388-2481

VL - 10

SP - 47

EP - 51

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 1

ER -

Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell

Abstract

Keywords

UN SDGs

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