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

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

研究成果: ジャーナルへの寄稿学術誌査読

29 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)B126-B130
ジャーナルElectrochemical and Solid-State Letters
12
9
DOI
出版ステータス出版済み - 2009

!!!All Science Journal Classification (ASJC) codes

  • 化学工学一般
  • 材料科学一般
  • 物理化学および理論化学
  • 電気化学
  • 電子工学および電気工学

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