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Spatially resolved characterization of PEFCs using simultaneously neutron radiography and locally resolved impedance spectroscopy

Record type: Article

A method for performing neutron radiography and locally resolved impedance spectroscopy simultaneously in Situ in all operating polymer electrolyte fuel cell (PEFC) is presented. The new method provides Concurrently spatially resolved information about the local cell performance, the locally limiting processes, and the liquid water distribution. Information about the impact of water oil cell performance and limiting processes call be gained in situ oil a local scale in all operating PEFC. The method was applied to a PEFC operated oil pure H-2/O-2 in co-flow mode under low humidity operating conditions. The results show that in co-flow mode strong flooding and severe drying can Occur at the very same time in different sections of a PEFC.

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Citation

Schneider, I.A., Kramer, D., Wokaun, A. and Scherer, G.G. (2005) Spatially resolved characterization of PEFCs using simultaneously neutron radiography and locally resolved impedance spectroscopy Electrochemistry Communications, 7, (12), pp. 1393-1397. (doi:10.1016/j.elecom.2005.09.017).

More information

Published date: 2 November 2005
Keywords: impedance spectroscopy, neutron radiography, segmented cell, pefc, water management, flooding
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 189833
URI: http://eprints.soton.ac.uk/id/eprint/189833
ISSN: 1388-2481
PURE UUID: a0e2e80b-6c7a-474b-8857-cfba18cac080

Catalogue record

Date deposited: 07 Jun 2011 10:25
Last modified: 18 Jul 2017 11:39

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Contributors

Author: I.A. Schneider
Author: D. Kramer
Author: A. Wokaun
Author: G.G. Scherer

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