Natural degradation and stimulated recovery of a proton exchange membrane fuel cell

Zhan, Y; Guo, Y; Zhu, J; Li, L

Natural degradation and stimulated recovery of a proton exchange membrane fuel cell

Zhan, Y Guo, Y

Zhu, J

Li, L

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Publication Type:: Journal Article
Citation:: International Journal of Hydrogen Energy, 2014, 39 (24), pp. 12849 - 12858
Issue Date:: 2014-08-13

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Field	Value	Language
dc.contributor.author	Zhan, Y	en_US
dc.contributor.author	Guo, Y https://orcid.org/0000-0001-6182-0684	en_US
dc.contributor.author	Zhu, J https://orcid.org/0000-0002-9763-4047	en_US
dc.contributor.author	Li, L	en_US
dc.date.available	2020-05-25T19:02:53Z
dc.date.issued	2014-08-13	en_US
dc.identifier.citation	International Journal of Hydrogen Energy, 2014, 39 (24), pp. 12849 - 12858	en_US
dc.identifier.issn	0360-3199	en_US
dc.identifier.uri	http://hdl.handle.net/10453/33262
dc.description.abstract	In this paper, the stimulated recovery of a proton exchange membrane (PEM) fuel cells after natural degradation has been investigated. The performance degradation of a 63-cell PEM fuel cell stack over a storage interval of 40,000 h at temperature 24 °C and relative humidity 65% was analyzed by static and dynamical tests. The average cell voltage degradation rate was 309 μV h -1, averaged over a range of currents. The performance was then partially recovered by application of a high frequency pulsing procedure after which the effective average degradation rate (from the commencement of storage to after the recovery) was approximately 170 μV h-1. This indicates the existence of both recoverable and irrecoverable degradations in the fuel cell. Furthermore, the equivalent circuit model and membrane resistance were used to investigate the degradation mechanisms, suggesting that the natural degradation of the fuel cell is mainly caused by the increase of the resistance, which is most likely caused by membrane dehydration. © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	International Journal of Hydrogen Energy	en_US
dc.relation.isbasedon	10.1016/j.ijhydene.2014.06.073	en_US
dc.subject.classification	Energy	en_US
dc.title	Natural degradation and stimulated recovery of a proton exchange membrane fuel cell	en_US
dc.type	Journal Article
utslib.citation.volume	24	en_US
utslib.citation.volume	39	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	open_access
pubs.issue	24	en_US
pubs.publication-status	Published	en_US
pubs.volume	39	en_US

Abstract:

In this paper, the stimulated recovery of a proton exchange membrane (PEM) fuel cells after natural degradation has been investigated. The performance degradation of a 63-cell PEM fuel cell stack over a storage interval of 40,000 h at temperature 24 °C and relative humidity 65% was analyzed by static and dynamical tests. The average cell voltage degradation rate was 309 μV h -1, averaged over a range of currents. The performance was then partially recovered by application of a high frequency pulsing procedure after which the effective average degradation rate (from the commencement of storage to after the recovery) was approximately 170 μV h-1. This indicates the existence of both recoverable and irrecoverable degradations in the fuel cell. Furthermore, the equivalent circuit model and membrane resistance were used to investigate the degradation mechanisms, suggesting that the natural degradation of the fuel cell is mainly caused by the increase of the resistance, which is most likely caused by membrane dehydration. © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

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http://hdl.handle.net/10453/33262