Design and fabrication of pumpless small direct methanol fuel cells for portable applications

Takahiro Shimizu, Toshiyuki Momma, Mohamed Mohamedi, Tetsuya Osaka, Srinivasan Sarangapani

Research output: Contribution to journalArticle

176 Citations (Scopus)


This work studied the design, fabrication, and performance evaluation of a 36 cm2, passive, air-breathing, room-temperature, direct methanol fuel cell (DMFC). The cell is completely passive with no external pumps or other ancillary devices. It takes oxygen from the surrounding air, and the methanol solution is stored in a built-in reservoir. The fuel cell runs successfully with methanol concentration ranging from 0.5 to 4 M. It produced a power density of 11 mW cm-2 reached with 4 M methanol at current densities as high as 36 mA cm-2 and at a voltage of 0.3.

Original languageEnglish
Pages (from-to)277-283
Number of pages7
JournalJournal of Power Sources
Issue number2
Publication statusPublished - 2004 Oct 29



  • Ambient temperature
  • DMFC
  • Nafion
  • Passive fuel cells
  • Portable
  • Small-scale application

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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