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

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

Research output: Contribution to journalArticleScientificpeer-review

73 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 languageEnglish
Pages (from-to)47-51
Number of pages5
JournalElectrochemistry Communications
Volume10
Issue number1
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Fingerprint

Diffusion in gases
Contact resistance
Fuel cells
Catalysts
Membranes
Graphite
Electrolytes
Compaction

Keywords

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

Cite this

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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.",
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Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell. / Nitta, Iwao (Corresponding Author); Himanen, Olli; Mikkola, Mikko.

In: Electrochemistry Communications, Vol. 10, No. 1, 2008, p. 47-51.

Research output: Contribution to journalArticleScientificpeer-review

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

VL - 10

SP - 47

EP - 51

JO - Electrochemistry Communications

JF - Electrochemistry Communications

SN - 1388-2481

IS - 1

ER -