Influences of gas diffusion layer design parameters on the performance of polymer electrolyte fuel cells

T. Kitahara, T. Konomi, M. Murata, N. Berg, P. M. Wilde

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

Experiments examining the influences of gas diffusion layer (GDL) design parameters on the performance of polymer electrolyte fuel cells (PEFCs) are carried out under controlled clamp pressure conditions. The PEFC performance is strongly affected by the humidity of the supplied gas. Under moderate-humidity conditions, improved performance is obtained using an untreated GDL with high air permeability, whereas under high-humidity conditions, improved performance is obtained using a GDL treated with PTFE. The addition of a microporous layer (MPL) under humid conditions significantly reduces flooding on the electrode, thereby decreasing the concentration overpotential. The MPL is also effective for preventing the membrane electrode assembly (MEA) from drying out under low-humidity conditions.

Original languageEnglish
Title of host publicationECS Transactions - 30th Fuel Cell Seminar
Pages27-36
Number of pages10
Edition1
DOIs
Publication statusPublished - Dec 1 2007
Event30th Fuel Cell Seminar - Honolulu, HI, United States
Duration: Nov 13 2006Nov 17 2006

Publication series

NameECS Transactions
Number1
Volume5
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other30th Fuel Cell Seminar
CountryUnited States
CityHonolulu, HI
Period11/13/0611/17/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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