Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance

T. Kitahara, H. Nakajima, K. Mori, M. Inamoto

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

2 Citations (Scopus)

Abstract

Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve water management properties of polymer electrolyte fuel cells (PEFCs). In the present study, a novel hydrophilic and hydrophobic double MPL coated GDL was developed to further enhance the PEFC performance under both low and high humidity conditions. Under low humidity conditions, a thin hydrophilic layer using titanium dioxide coated on the hydrophobic MPL is effective to conserve the humidity of the MEA, while a hydrophobic intermediate MPL between the hydrophilic layer and the GDL substrate prevents the removal of water in the hydrophilic layer. Under high humidity conditions, a double MPL coated GDL is also effective to reduce flooding on the cathode catalyst layer, which results in a higher PEFC performance compared with that for a conventional hydrophobic MPL coated GDL.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 12, PEFC 2012
PublisherElectrochemical Society Inc.
Pages437-444
Number of pages8
Edition2
ISBN (Print)9781607683506
DOIs
Publication statusPublished - 2013
Event12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, United States
Duration: Oct 7 2012Oct 12 2012

Publication series

NameECS Transactions
Number2
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
Country/TerritoryUnited States
CityHonolulu, HI
Period10/7/1210/12/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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