PEM fuel cell durability with transportation transient operation

Rod L. Borup, John R. Davey, Fernando H. Garzon, David L. Wood, Paul M. Welch, Karren More

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

51 Scopus citations

Abstract

PEM fuel cell durability testing is performed with tests conducted using steady-state conditions, with dynamic conditions using power cycling simulating a vehicle drive cycle and by accelerated testing methods. The long-term performance characteristics of MEAs, Electrocatalysts and Gas Diffusion Layers (GDLs) and their impact on PEMFC durability are evaluated in terms of their associated degradation mechanisms. Testing simulating automotive drive cycles show a greater rate of particle growth than do tests in which the cell potential is held constant. The loss of electroactive Pt surface area is shown to be due primarily to the growth in platinum particle size; particle growth appears to have multiple growth mechanisms. Cathode particle size growth is dependent on temperature, relative humidity and potential. Cell performance degradation due to mass transport limitations correlates with changing hydrophobicity of GDL materials. copyright The Electrochemical Society.

Original languageEnglish
Title of host publicationProton Exchange Membrane Fuel Cells 6
PublisherElectrochemical Society Inc.
Pages879-886
Number of pages8
Edition1
ISBN (Electronic)1566775019
DOIs
StatePublished - 2006
EventProton Exchange Membrane Fuel Cells 6 - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: Oct 29 2006Nov 3 2006

Publication series

NameECS Transactions
Number1
Volume3
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceProton Exchange Membrane Fuel Cells 6 - 210th Electrochemical Society Meeting
Country/TerritoryMexico
CityCancun
Period10/29/0611/3/06

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