Passive cathodic water/air management device for micro-direct methanol fuel cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

13 Scopus Citations
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Author(s)

  • Hsien-Chih Peng
  • Po-Hon Chen
  • Hung-Wen Chen
  • Ching-Chang Chieng
  • Tsung-Kuang Yeh
  • And 2 others
  • Chin Pan
  • Fan-Gang Tseng

Detail(s)

Original languageEnglish
Pages (from-to)7349-7358
Journal / PublicationJournal of Power Sources
Volume195
Issue number21
Publication statusPublished - 1 Nov 2010
Externally publishedYes

Abstract

A high efficient passive water/air management device (WAMD) is proposed and successfully demonstrated in this paper. The apparatus consists of cornered micro-channels and air-breathing windows with hydrophobicity arrangement to regulate liquids and gases to flow on their predetermined pathways. A high performance water/air separation with water removal rate of about 5.1 μl s-1 cm-2 is demonstrated. The performance of the proposed WAMD is sufficient to manage a cathode-generated water flux of 0.26 μl s -1 cm-2 in the micro-direct methanol fuel cells (μDMFCs) which are operated at 100 mW cm-2 or 400 mA cm -2. Furthermore, the condensed vapors can also be collected and recirculated with the existing micro-channels which act as a passive water recycling system for μDMFCs. The durability testing shows that the fuel cells equipped with WAMD exhibit improved stability and higher current density. © 2010 Elsevier B.V.

Research Area(s)

  • Cathode water removal, Corner flow, Fuel cells, V-groove micro-channel, Water/air management

Citation Format(s)

Passive cathodic water/air management device for micro-direct methanol fuel cells. / Peng, Hsien-Chih; Chen, Po-Hon; Chen, Hung-Wen; Chieng, Ching-Chang; Yeh, Tsung-Kuang; Pan, Chin; Tseng, Fan-Gang.

In: Journal of Power Sources, Vol. 195, No. 21, 01.11.2010, p. 7349-7358.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review