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Improvement of magnesium battery output based on understanding and control of growth behavior of high resistance magnesium oxide film

Research Project

Project/Area Number 18K14029
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionNagoya Institute of Technology (2020)
Tokyo University of Science (2018-2019)

Principal Investigator

Hoshi Yoshinao  名古屋工業大学, 工学(系)研究科(研究院), 准教授 (20632574)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsマグネシウム電池 / 自己放電 / 水素発生 / 電気化学測定 / ガスクロマトグラフィー / アノード分極曲線 / アノード部分分極曲線 / 酸化物皮膜 / マグネシウム / アノード分極 / カソード分極 / ガス分析 / 水素発生電流 / 電気化学反応 / 局部溶解 / 水素発生速度 / in-situ分析 / カソード部分分極曲線 / 電気化学セル / アノード部分電流 / 皮膜形成 / 酸化物皮膜制御 / In-situイメージングCFDE / 3D電気化学インピーダンス法
Outline of Final Research Achievements

A new measurement method, which can analyze hydrogen gas generated during electrochemical measurement of magnesium in-situ, was developed to clarify the relationship between the dissolution current of magnesium and the hydrogen generation current. The oxide film breakdown on the magnesium surface leaded to increase of the hydrogen generation current, and this current value was correlated with the dissolution current of magnesium.

Academic Significance and Societal Importance of the Research Achievements

マグネシウム電池の出力向上指針を確立するためには、マグネシウムの溶解やこれにともない表面に形成する酸化物皮膜と電池の自己放電の原因となる水素発生挙動の関係を明らかにする必要があり、本研究ではこれらの知見を見出すことができる新技術の開発に成功した。さらに、マグネシウムの溶解挙動と水素発生挙動をそれぞれ電流値として定量的に評価できることは、電池開発指針を示すうえで意義深い。本技術は水素ガスに加えて酸素ガスや窒素ガスの分析の可能であるため、電池稼働環境を踏まえた電極材料開発へ応用可能である。

Report

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

    (6 results)

All 2021 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] In Situ Hydrogen Evolution Detection from Mg Electrode During Anodic Potentiodynamic Polarization Measurement with Gas-Chromatographic Analysis2021

    • Author(s)
      Hoshi Yoshinao、Hirayama Yusuke、Watanabe Hikari、Shitanda Isao、Itagaki Masayuki
    • Journal Title

      Journal of The Electrochemical Society

      Volume: 168 Issue: 3 Pages: 031510-031510

    • DOI

      10.1149/1945-7111/abebb0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] In-situ EC-GC Cell を用いた水素ガス解析による Mg のアノード部分電流の検出2020

    • Author(s)
      星 芳直, 平山祐輔, 渡辺日香里, 四反田 功, 板垣昌幸
    • Organizer
      第67回材料と環境討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Detection of Anodic Partial Current of Mg Dissolution by Gas-Chromatographic Analysis2020

    • Author(s)
      Yoshinao HOSHI,Yusuke HIRAYAMA, Hikari WATANABE, Isao SHITANDA, Masayuki ITAGAKI
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Determination of Corrosion Current Density of Magnesium by In-situ GC-EC Cell2019

    • Author(s)
      Yusuke Hirayama, Yoshinao Hoshi, Isao Shitanda, Masayuki Itagaki
    • Organizer
      3rd Asian Symposium on Electrochemical Impedance Spectroscopy
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis on Anodic Partial Current of Magnesium by In-situ GC-EC Cell2019

    • Author(s)
      Yusuke Hirayama, Yoshinao Hoshi, Isao Shitanda, Masayuki Itagaki
    • Organizer
      236th ECS Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] In-situ GC-ECセルによるMgのアノード部分分極曲線の解析2019

    • Author(s)
      平山祐輔, 星 芳直, 四反田 功, 板垣昌幸
    • Organizer
      材料と環境2019
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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