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Potential Distribution Measurement in PEFC Electrolyte Membrane for Membrane Degradation Analysis

[+] Author Affiliations
Yuuki Okano, Masato Ooishi, Kazuyoshi Fushinobu, Ken Okazaki

Tokyo Institute of Technology, Tokyo, Japan

Atsushi Ohma

Nissan Motor Company, Ltd.; Tokyo Institute of Technology, Tokyo, Japan

Paper No. IHTC14-22510, pp. 47-52; 6 pages
  • 2010 14th International Heat Transfer Conference
  • 2010 14th International Heat Transfer Conference, Volume 5
  • Washington, DC, USA, August 8–13, 2010
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4940-8 | eISBN: 978-0-7918-3879-2
  • Copyright © 2010 by ASME


Potential distribution in the electrolyte membrane in the MEA of PEFC has been measured in order to help understand a recently suggested membrane degradation mechanism caused by Pt band. A thin metallic probe, Pt or Au, is inserted in membrane to measure the potential distribution. The measured profile shows abrupt change at certain position, and the position is influenced by the operation and cell design parameters. A simple theoretical model to predict the potential distribution is developed and showed good agreement with experimental results.

Copyright © 2010 by ASME



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