Analysis of water balance in PEFC at transient operation mode (effects of hydrophobic treatment and micro porous layer on PEFC performance at starting test procedure mode)

Toshiaki Konomi, Tatsumi Kitahara, Yousuke Iwata

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Effects of hydrophobic treatment and MPL (Micro Porous Layer) in PEFC were investigated by experiments at starting test procedure mode. Hydrophobic treatment decreases accumulated water in DGL (Gas Diffusion Layer), and increases it on cathode electrode, which disturbs gas diffusion and makes PEFC output voltage lower. Coating of MPL on GDL protects cathode electrode wetting and improves PEFC performance. Improvement of gas permeability of GDL matrix makes not only gas diffusion to cathode electrode smooth but also exhausting of product water vapor from electrode to gas channel active, and these two merits improve PEFC performance under flooding obstruction at starting procedure mode.

Original languageEnglish
Pages (from-to)764-770
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume72
Issue number3
DOIs
Publication statusPublished - Mar 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

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