In situ measurement of temperature distribution across a proton exchange membrane fuel cell

Sang Kun Lee, Kohei Ito, Toshihiro Ohshima, Shiun Noda, Kazunari Sasaki

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The temperature distribution across a proton exchange membrane fuel cell was measured by inserting micro-thermocouples between layers such as a gas diffusion layer and membrane electrode assembly. Under steady-state operation, the cathode catalyst layer had the maximum temperature. The activation overpotential at the cathode catalyst layer served as the main heat source, resulting in the maximum temperature at the cathode catalyst layer. The temperature at the cathode catalyst layer just after the load current was interrupted had the minimum temperature. This is thought to be caused by water evaporation from the cathode catalyst layer, where liquid water accumulates during operation.

Original languageEnglish
Pages (from-to)B126-B130
JournalElectrochemical and Solid-State Letters
Volume12
Issue number9
DOIs
Publication statusPublished - Jul 31 2009

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this