NDLI: Life study of a PBI-PEM fuel cell by current distribution measurement

Content Provider	Springer Nature Link
Author	Úbeda, Diego Pinar, Francisco J. Orozco, Diana C. Cañizares, Pablo Rodrigo, Manuel A. Lobato, Justo
Copyright Year	2012
Abstract	PBI-based polymer electrolyte membrane (PEM) fuel cells have short durability comparing with Nafion ones. It is known that the presence of phosphoric acid accelerates catalyst sintering, and the polymer is susceptible to getting degraded via oxidative degradation. However, the influence of the current distribution on the degradation process has not been investigated. In this work, current distribution was measured continuously during a steady state life test that was performed in a 50-cm$^{2}$ PBI-PEM fuel cell. The membrane-electrode assembly was prepared using techniques that are supposed to ensure satisfactory reproducibility at global level. Two different stages, i.e., activation and degradation, were identified. They show disparities in both global and local performance. It was found that the current distribution map is very heterogeneous, with variations around ±50 % with respect to the average value during the whole lifetime of the cell. The non-uniformity of the current profile increases during the degradation, but it cannot be concluded that the current density distribution contributes to the short lifetime.
Starting Page	711
Ending Page	718
Page Count	8
File Format	PDF
ISSN	0021891X
Journal	Journal of Applied Electrochemistry
Volume Number	42
Issue Number	9
e-ISSN	15728838
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-07-26
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Current distribution PBI Durability Fuel cell Degradation Physical Chemistry Industrial Chemistry/Chemical Engineering Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Chemical Engineering Electrochemistry

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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