Hydrophilic and Hydrophobic Microporous Layer Coated Gas Diffusion Layer for Enhancing PEFC Performance

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

Abstract

The hydrophobic microporous layer (MPL) coated on the gas diffusion layers (GDLs) have been commonly used to improve water management properties of polymer electrolyte fuel cells (PEFCs). An MPL coated GDL designed to prevent dehydration of the membrane electrode assembly (MEA) under low humidity conditions is generally inferior at reducing flooding under high humidity conditions. Thus, developing an MPL coated GDL to enhance the PEFC performance under low and high humidity conditions is crucial. One method to overcome the defects of pure hydrophobic MPL is to make double and triple MPLs, in which a thin hydrophilic layer coated on the hydrophobic MPL. Another method is a hydrophobic MPL containing hydrophilic carbon nanotubes (CNTs). Both methods effectively conserve membrane humidity and reduce flooding under high humidity conditions.

Original languageEnglish
Title of host publication240th ECS Meeting - Polymer Electrolyte Fuel Cells and Electrolyzers 21 (PEFC and E 21)
PublisherIOP Publishing Ltd.
Pages117-127
Number of pages11
Edition8
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2021
Event240th ECS Meeting - Orlando, United States
Duration: Oct 10 2021Oct 14 2021

Publication series

NameECS Transactions
Number8
Volume104
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference240th ECS Meeting
Country/TerritoryUnited States
CityOrlando
Period10/10/2110/14/21

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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