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Ion migration enhancement and new device creation by elastic waves based on mechano-electro-chemistry

Research Project

Project/Area Number 16K13657
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Applied materials
Research InstitutionTohoku University

Principal Investigator

Iguchi Fumitada  東北大学, 工学研究科, 准教授 (00361113)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords歪み効果 / イットリア安定化ジルコニア / 弾性波 / 導電率 / 固体酸化物形燃料電池 / 動的歪み / 酸化物イオン導電体 / ひずみ効果 / 定在波 / YSZ / メカノエレクトロケミストリー / 共振 / 固体電解質 / イオン輸送
Outline of Final Research Achievements

Strain effect, which is the phenomena that introduced strain influences ionic conductivity, in oxygen ionic conductors used for high temperature electrochemical devices such as solid oxide fuel cells was studied. We focused on the similarity of the density fluctuation by elastic waves (dynamic strain) to strain caused by applying forces (static strain), and evaluate the influence of dynamic strain produced by elastic waves to oxygen ionic conductivity of yttria stabilized zirconia (YSZ) using a house build apparatus. Based on the experimental results, and the analysis using mathematical models, we revealed the effect of dynamic strain to oxygen ionic conductivity for the first time in the world. Oxygen ionic conductivity changes according to dynamic strain, and the rate of change is similar to strain effect for static strain. Using the results, we proposed new performance improve method for high temperature electrochemical devices using elastic waves.

Academic Significance and Societal Importance of the Research Achievements

歪みがイオン導電体のイオン導電率に与える影響は古くから知られています。しかし異方性,引張方向の歪みを加え制御することの困難さから,歪みの導電率に対する正の影響(歪み効果)は近年まで報告されませんでした。また,歪み印可手法は現在でも学術的に大きな課題となっています。弾性波による歪みの印可は,異方性の歪みを高い制御性でイオン導電体に加えることが可能であり,歪み効果の研究を一気に加速する可能性を持つと考えています。電気化学デバイスの内部には,製造時,運転時様々な歪みが導入されています。本研究により,現在は考慮されていない歪みの性能への影響を考慮可能となり,性能設計等においても進展を期待できます。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (14 results) (of which Int'l Joint Research: 6 results)

  • [Journal Article] Strain Effects on Oxygen Ionic Conductivity of Yttria-Stabilized Zirconia Thin Films Subjected to Elastic Waves2020

    • Author(s)
      Miyoshim Yutaro、Watanabe Daigo、Iguchi Fumitada
    • Journal Title

      Journal of The Electrochemical Society

      Volume: 167 Issue: 2 Pages: 024513-024513

    • DOI

      10.1149/1945-7111/ab6bbe

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strain Effects in YSZ Thin Films by Elastic Waves2019

    • Author(s)
      Miyoshi Yutaro、Iguchi Fumitada
    • Journal Title

      ECS Transactions

      Volume: 91 Issue: 1 Pages: 1121-1128

    • DOI

      10.1149/09101.1121ecst

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Residual Strain in the Composites of Oxygen Ionic Conductors and Oxides2019

    • Author(s)
      R. Kuwabara, K, Yashiro, T. Nakamura, F. Iguchi
    • Journal Title

      Proceedings of 16th Biennial Worldwide Congress (UNITECR 2019)

      Volume: - Pages: 281-284

    • Related Report
      2019 Annual Research Report
  • [Presentation] Strain Effects in YSZ Thin Films by Elastic Waves2019

    • Author(s)
      Yutaro Miyoshi, Fumitada Iguchi
    • Organizer
      16th International Conference on Solid Oxide Fuel Cells (SOFC-XVI)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strain Effects in YSZ thin Films by Elastic Waves2019

    • Author(s)
      Yutaro Miyoshi, Fumitada Iguchi
    • Organizer
      22nd International Conference on Solid State Ionics (SSI-22)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Residual Strain in the Composites of Oxygen Ionic Conductors and Oxide2019

    • Author(s)
      Ryosuke Kuwabara, Keiji Yashiro, Takashi Nakamura, Fumitada Iguchi
    • Organizer
      第16回耐火物統一国際会議(UNITECR2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 酸化物イオン導電体において弾性波がもたらすひずみ効果2019

    • Author(s)
      三由雄太郎,渡邊大吾,井口史匡
    • Organizer
      第45回固体イオニクス討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 固体イオニクス材料の電気的特性に対する弾性波導入の影響2019

    • Author(s)
      井口史匡
    • Organizer
      電気化学会第86回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Strain Effects in YSZ thin films by Elastic Waves2019

    • Author(s)
      Fumitada Iguchi
    • Organizer
      the 22nd International Conference on Solid State Ionics (SSI-22)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Strain Effects in YSZ thin films by Elastic Waves2019

    • Author(s)
      Fumitada Iguchi
    • Organizer
      The 16th International Symposium on Solid Oxide Fuel Cells (SOFC-XVI)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高温固体電解質の電気化学特性に対する弾性波の影響2018

    • Author(s)
      井口史匡
    • Organizer
      日本機械学会2018年度年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] イットリア安定化ジルコニアの電気化学的特性に対する弾性波の影響2018

    • Author(s)
      三由 雄太郎,井口 史匡
    • Organizer
      日本セラミックス協会 2018年 年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 希土類添加セリア複合体における残留ひずみと電気化学的特性2018

    • Author(s)
      阿部智也,八代圭司,中村崇司,井口史匡
    • Organizer
      日本セラミックス協会 2018年 年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 希土類添加セリア複合体における残留ひずみとその電気的特性への影響2018

    • Author(s)
      阿部智也,八代圭司,中村崇司,井口史匡
    • Organizer
      電気化学会第85回大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Chemical expansion control in rare-earth doped ceria by mechanical effects2017

    • Author(s)
      T. Abe, T. Nakamura, K. Yashiro, and F. Iguchi
    • Organizer
      21st International Conference on Solid State Ionics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 希土類添加セリア複合体における化学膨張特性2017

    • Author(s)
      井口史匡,阿部知也,八代圭司,中村崇司
    • Organizer
      日本機械学会 2017年度年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Reduction Behavior in Rare-Earth Doped Ceria and Magnesia Composites2017

    • Author(s)
      Fumitada IGUCHI, Tomoya ABE, Takashi NAKAMURA, Keiji YASHIRO
    • Organizer
      Joint Meeting of the Tohoku Area Chemistry Societies
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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