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Estimation of AC impedance by magnetic method and its application to the evaluation of electrochemical reaction in localize region

Research Project

Project/Area Number 18K04168
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionOkayama University

Principal Investigator

Sakai Kenji  岡山大学, ヘルスシステム統合科学学域, 准教授 (40598405)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords電気化学インピーダンス / SQUID / 磁場分布 / 有機太陽電池 / 軟磁性体 / 色素増感型太陽電池 / 触媒 / 交流インピーダンス / 磁気計測 / 電気化学 / 磁気センサ / 非破壊検査
Outline of Final Research Achievements

In this study, the evaluation of battery by detecting a small magnetic field from a battery was investigated. This small magnetic field is generated from an electrical current flowing inside the battery and the small magnetic field was detected using highly sensitive magnetic sensor. Using the proposed method, the difference of electrical property in organic solar cell was able to evaluate. Moreover, the electrical property of localized region was possible to evaluate by improving the detection unit of magnetic field.

Academic Significance and Societal Importance of the Research Achievements

電池は我々の生活に欠かせないデバイスとなっているが,既存の電池評価手法で電池内部の評価を行うには,電池を破壊して解体し内部の状態を観察する必要がある。しかし,本研究の成果は電池を破壊することなく内部状態の評価が可能であるため,電池の製造段階から破棄するまでに電池を破壊することなく継続して内部の状態が評価可能となる。この評価結果は,高性能電池の開発に役立ち,高性能電池の実現は我々の暮らしをより豊かなものへと導くことができる。また,電池が動作する状態で電池内部の局所領域の状態が評価できれば,これまで困難であった電池内部の反応機構解明も期待でき,学術的な意義も大きい。,

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2019 Other

All Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Remarks (1 results)

  • [Presentation] HTS-SQUID を用いた高感度交流磁場分布可視化システムの開発と電池評価への応用2022

    • Author(s)
      堺 健司
    • Organizer
      2021年度 第3回超電導応用研究会シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Development of HTS-SQUID based magnetic measurement system for detecting a localized magnetic field with a wide frequency range2021

    • Author(s)
      Kenji Sakai, Ryota Aoki, JIn Wang, Toshihiko Kiwa
    • Organizer
      34th International Symposium on Superconductivity
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 局所領域電気化学インピーダンス推定に向けたHTS-SQUIDによる微小領域磁場計測装置の開発2021

    • Author(s)
      堺 健司,青木 良太,王 ジン,紀和 利彦,塚田 啓二
    • Organizer
      応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Estimation of electrochemical impedance using HTS-SQUID based magnetic measurement system2019

    • Author(s)
      Kenji Sakai, Toshihiko Kiwa, Keiji Tsukada
    • Organizer
      10th East Asia Symposium on Superconductor Electronics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of localized electrochmical impedance for dye sensitized solar cell using magnetic measurement2019

    • Author(s)
      Kenji Sakai, Toshihiko Kiwa, Keiji Tsukada
    • Organizer
      Advanced Energy Materials World Congress 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] HTS-SQUIDを用いた磁場計測装置による局所領域電気化学インピーダンスの評価2019

    • Author(s)
      堺健司,紀和利彦,塚田啓二
    • Organizer
      第79回 応用物理学会 秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Remarks] 先端医用電子工学研究室

    • URL

      https://www.okayama-u.ac.jp/user/eng_aemt/index.html

    • Related Report
      2020 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

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