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In situ observation of the water distribution across a PEFC using high resolution neutron radiography

Record type: Article

The water distribution across the membrane electrolyte assembly (MEA) of a working polymer electrolyte fuel cell (PEFC) was observed in situ using neutron radiography. In order to resolve the distribution between the different layers of the MEA, in plane imaging (cell membrane parallel to the beam) was used. Unprecedented spatial resolution for neutron radiography was obtained using a new detector system available at PSI combined with specific anisotropic resolution enhancement methods. A detrimental effect on performance of excessive water content in the cathode GDL was observed. Depending on the operating condition, a strong separation of the water content between ribs and channel was observed, particularly in the cathode GDL.

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Citation

Boilat, P., Kramer, D., Seyfang, B.C., Frei, G., Lehmann, E., Scherer, G., Wokaun, A., Ichikawa, Y., Tasaki, Y. and Shinohara, K. (2008) In situ observation of the water distribution across a PEFC using high resolution neutron radiography Electrochemistry Communications, 10, (4), pp. 546-550. (doi:10.1016/j.elecom.2008.01.018).

More information

Published date: 18 January 2008
Keywords: fuel cell, neutron radiography, high resolution, water management
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 189741
URI: http://eprints.soton.ac.uk/id/eprint/189741
ISSN: 1388-2481
PURE UUID: 17f7b731-a37c-4c3a-828b-cd0f6f7173b2

Catalogue record

Date deposited: 06 Jun 2011 13:53
Last modified: 18 Jul 2017 11:40

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Contributors

Author: P. Boilat
Author: D. Kramer
Author: B.C. Seyfang
Author: G. Frei
Author: E. Lehmann
Author: G. Scherer
Author: A. Wokaun
Author: Y. Ichikawa
Author: Y. Tasaki
Author: K. Shinohara

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