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2005 Fiscal Year Final Research Report Summary

Development of Wick Type Cell Structure for Direct Dimetylether Fuel Cell

Research Project

Project/Area Number 16560172
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionIbaraki University

Principal Investigator

HARAGUCHI Tadao  Ibaraki University, College of Engineering, Associate Professor, 工学部, 助教授 (00091728)

Project Period (FY) 2004 – 2005
KeywordsDME / Fuel Cell / Wick Cell Type / Separator / MEA
Research Abstract

Until now, research of direct dimetylether fuel cell (DDFC), gases used for it have been needed to be humidified over 100%R.H. because the water molecules have been used on the anode electrode to generate electricity. But to excessively supply water in a cell have occurred flooding. Also, because cell temperature distribution perhaps has not uniformed during generation of electricity, electrolyte membrane has been dry at high temperature regions, and water droplets have accumulated in the separator ducts at low temperature regions.
Then, in this study, wicks that have a capillary force have been inserted to the anode and cathode separator ducts. Results got have been summarized, and they have been shown in the following.
(1) In the DME gas supply test, the I-V performance with the wicks has not improved.
(2) In the DMEaq supply test, with the wicks, the maximum power density has not improved, but limiting current density has improved.
(3) In the DME gas and liquid water supply test, internal resistance with the wicks has reduced at the cathode oxygen flow rate 200ml/min.
(4) In the pressure drop distribution test using DME gas as the anode fuel, pressure drop in the all the sections have increased as the current has increased.
(5) In the pressure drop distribution test using hydrogen gas as the anode fuel, pressure drop in the all the sections have decreased as the current has increased.
(6) We make the visualization cell. Which we can observe the cell watercourse directly. We try to observe the electrode surface in the power generation of DDFC. We can confirm the first time dew condensation in the watercourse center edge cathode plane at 0.12A/cm^2.

  • Research Products

    (4 results)

All 2005

All Journal Article (4 results)

  • [Journal Article] 次メチルエーテル燃料電池のウイック形セル構造の開発2005

    • Author(s)
      山村啓一郎, 原口忠男
    • Journal Title

      日本機械学会茨城講演会講演論文集 No.050-3

      Pages: 119-120

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 直接形ジメチルエーテル燃料電池のウイック形セル構造の開発2005

    • Author(s)
      佐藤樹三郎, 山村啓一郎, 原口忠男
    • Journal Title

      第46回 電池討論会

      Pages: 742-743

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of wick type cell structure for dimetylether fuel cell2005

    • Author(s)
      Keiichiro Yamamura, Tadao Haraguchi
    • Journal Title

      JSME, Ibaraki District Conference No.040-3

      Pages: 119-120

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of wick type cell structure for direct dimethylether fuel cell2005

    • Author(s)
      Jyusaburou Satou, Keiichirou Yamamura, Tadao Haraguchi
    • Journal Title

      The 46^<th> Battery Symposium in Japan

      Pages: 742-743

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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