Long-term durability study of perfluoropolymer membranes in low humidification conditions

Alfonso Pozio, Alessia Cemmi, Francesco Mura, Amedeo Masci, Emanuele Serra, Rodrigo Ferreira Silva

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Abstract

This paper reports a study on the understanding of the performance decrease mechanisms of polymer electrolyte fuel cells under critical operating conditions. In order to investigate the durability of perfluorosulfonate membranes at low humidification conditions, long-term fuel cell tests have been carried out. Results evidenced a strong effect of low relative humidity on the commercial polymer membrane lifetime. Prolonged dehydration of the membranes led to a decrease of the three-dimensional reaction zone due to the ionomer degradation in the catalytic layer and a continuous loss of material in the membrane evidenced by a thickness decrease. The last effect provoked a collapse of the electrode structure. © 2010 Springer-Verlag.
Original languageEnglish
Pages (from-to)1209 - 1216
Number of pages8
JournalJournal of Solid State Electrochemistry
Volume15
Issue number6
DOIs
Publication statusPublished - Jun 2011

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Electrochemistry

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