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Creation of technology platforms for rapid visualization of the internal state of batteries for the realization of a safe battery society

Research Project

Project/Area Number 22K18865
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
Research InstitutionTohoku University

Principal Investigator

Kazuhisa SATO  東北大学, 工学研究科, 准教授 (50422077)

Co-Investigator(Kenkyū-buntansha) 荒木 稚子  東京工業大学, 工学院, 教授 (40359691)
鷲見 裕史  国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究グループ長 (80613257)
Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords全固体電池 / 燃料電池 / 信頼性 / 耐久性 / 迅速評価 / その場非破壊評価 / 界面 / 非破壊検査 / テラヘルツ波 / 数値解析 / 長期寿命予測 / アクティブ音響波試験 / 電気・化学・力学的特徴量 / 非破壊 / 深層学習 / 内部構造 / 電池 / 信頼性・耐久性 / 可視化 / 非破壊評価 / 動的変化
Outline of Research at the Start

充放電のたびに動的に変化する2次電池の内部の様子を可視化することは、電池の安全性・信頼性を担保する上で極めて重要です。一方、リチウムは極めて小さく、早く移動するためそのものの動きを捉えて可視化することは難しいことです。そこで、音や温度変化、変形を捉えることで内部の動的変化を可視化することを目指します。分子計算と現象を比較することで見えない電池の動的変化を可視化することを目指します。

Outline of Final Research Achievements

Fuel cells and secondary batteries are well known as the method of electrical energy production and storage with the lowest energy loss. On the other hand, it is extremely important to visualise the inside of all-solid-state electrochemical devices, which change dynamically every time they generate electricity or charge and discharge, to ensure the safety and reliability of the batteries. However, it is difficult to capture and visualise the movement of the ions themselves because they are extremely small and move quickly, so little is known about when degradation occurs during operation.
In this study, a rapid evaluation method was developed to elucidate the stability and reactivity of the interface between different phases where electrochemical reactions take place in all-solid-state electrochemical devices, and the coupled effects of mechanical, electrical and chemical reactions were elucidated.

Academic Significance and Societal Importance of the Research Achievements

発電や充放電のたびに動的に変化する全固体電気化学デバイスの内部の様子を可視化することは、電池の安全性・信頼性を担保する上で極めて重要である。
そこで本研究では、全固体電気化学デバイスの電気化学反応が行われる異相界面の安定性や反応性の解明に向けた迅速評価手法の開発を行い、力学・電気・化学反応の連成効果の解明に成功した。本成果は全固体電池のみならず、様々な積層デバイスに応用できることが期待できる.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (2 results) (of which Invited: 2 results) Remarks (2 results)

  • [Journal Article] Visualizing internal micro-damage distribution in solid oxide fuel cells2023

    • Author(s)
      Sato Kazuhisa、Yabuta Yoshie、Kumada Keigo、Fukui Ken-ichi、Numao Masayuki、Kawada Tatsuya
    • Journal Title

      Journal of Power Sources

      Volume: 570 Pages: 233059-233059

    • DOI

      10.1016/j.jpowsour.2023.233059

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Creep constitutive law prediction via short-term evaluation using a small size testing method2023

    • Author(s)
      Huang Yihui、Kadowaki Moeno、Nakano Takanori、Kumada Keigo、Watanabe Satoshi、Kawada Tatsuya、Sato Kazuhisa
    • Journal Title

      Energy Reports

      Volume: 10 Pages: 1126-1134

    • DOI

      10.1016/j.egyr.2023.07.046

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Why is the performance different between small- and large-scale SOFCs?2023

    • Author(s)
      Sumi Hirofumi、Shimada Hiroyuki、Yamaguchi Yuki、Nomura Katsuhiro、Sato Kazuhisa
    • Journal Title

      Electrochimica Acta

      Volume: 443 Pages: 141965-141965

    • DOI

      10.1016/j.electacta.2023.141965

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deformation mechanism of Ni(O)-yttria-stabilized zirconia upon reduction and its effect on cell stress evolution in solid oxide fuel cells2022

    • Author(s)
      Tanaka Junya、Sato Kazuhisa、Yashiro Keiji、Kawada Tatsuya、Hashida Toshiyuki
    • Journal Title

      Journal of Power Sources

      Volume: 550 Pages: 232116-232116

    • DOI

      10.1016/j.jpowsour.2022.232116

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 百年電池の実現を目指して2023

    • Author(s)
      佐藤一永
    • Organizer
      日本機械学会講演会「低炭素社会実現に向けた最新技術」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] SOFC/SOECの社会実装に向けた信頼性・耐久性研究2023

    • Author(s)
      佐藤一永
    • Organizer
      第18回再生可能エネルギー世界展示会&フォーラム(RE2024)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Remarks]

    • URL

      https://researchmap.jp/read0210604

    • Related Report
      2023 Annual Research Report
  • [Remarks]

    • URL

      https://web.tohoku.ac.jp/ecslab

    • Related Report
      2023 Annual Research Report

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Published: 2022-07-05   Modified: 2025-01-30  

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