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Novel composite electrolytes using hetero-interfacial effect and their application to electrochemical devices

Research Project

Project/Area Number 22360336
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Catalyst/Resource chemical process
Research InstitutionThe University of Tokyo

Principal Investigator

KIKUCHI Ryuji  東京大学, 大学院・工学系研究科, 准教授 (40325486)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2010: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Keywords資源・エネルギー有効利用技術 / 固体電解質 / 無機酸素酸塩 / 界面伝導相 / 燃料 電池 / エネルギー効率化 / 燃料電池 / 有効媒質近似 / ピロリン酸シリカ / リン酸二水素セシウム
Research Abstract

Novel composite electrolytes based on phosphate and oxide matrix were investigated for intermediate fuel cells operative at 200-300°C, and the promotional effect of the hetero-interface between the conductive phase and matrix was examined. Interfacial conductive phase was formed between phosphate and SiO2 treated with phosphoric acid, leading to an increase in the conductivity. CsH5(PO4)2/SiO2 composite membrane employing silica fiber membrane as a matrix with a thickness of 70 and 150 μm was fabricated and applied to an electrolyte for an intermediate-temperature fuel cell, which demonstrated good performance of 105 mW cm-2 at 200°C due to a low area specific resistance of 0.32 Ω cm2, and was stable at 200°C under a constant current load of 100 mA cm-2 for 50 h.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (4 results)

All 2012 2010 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (2 results)

  • [Journal Article] Development of novel proton conductors consisting of solid acid/pyrophosphate composite for intermediate-temperature fuel cells2010

    • Author(s)
      T.Matsui, H.Muroyama, R.Kikuchi, K.Eguchi
    • Journal Title

      Journal of the Japan Petroleum Institute

      Volume: 53 Pages: 1-11

    • NAID

      10026219727

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intermediate-Temperature Fuel Cells Employing Thin Electrolytes Consisting of CsH 5(PO4)-based Composites

    • Author(s)
      K. Sukegawa, R. Kikuchi, A. Takagaki, T. Sugawara, and S. T. Oyama,
    • Journal Title

      submitted to Journal of the Electrochemical Society

    • Related Report
      2012 Final Research Report
  • [Presentation] 中温作動型燃料電池用リン酸塩複合体電解質の薄膜化に関する研究2012

    • Author(s)
      助川和也、菊地隆司、高垣敦、Oyama S.T
    • Organizer
      化学工学会第77年会、I216
    • Place of Presentation
      東京
    • Related Report
      2012 Final Research Report
  • [Presentation] 中温作動型燃料電池用リン酸塩複合体電解質の薄膜化に関する研究2012

    • Author(s)
      助川 和也、菊地 隆司、高垣 敦、菅原 孝、Oyama S. T
    • Organizer
      化学工学会 第77年会
    • Place of Presentation
      東京(工学院大学)
    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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