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Experimental and theoretical understanding of dynamic behavior of multivalent ions in non-aqueous solvents

Research Project

Project/Area Number 18K05309
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Kiyobayashi Tetsu  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 研究主幹 (80356906)

Co-Investigator(Kenkyū-buntansha) 佐野 光  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (20613251)
尾崎 弘幸  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (70415652)
内田 悟史  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 研究員 (40725420)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords輸送現象 / 多価イオン / モンテカルロシミュレーション / 多価カチオン / イオン輸送 / シミュレーション / 伝導度 / 粘度 / マグネシウム系電解液 / スケール則 / イオン伝導度 / 擬格子モデル / 電極 / 界面
Outline of Final Research Achievements

We examined the grounds how the transport properties like the electric conductivity of the electrolytes are governed by the ions involved in the solution. Theoretical investigation revealed that the conductivity exponentially decays with respect to the interaction between the ions. Experimental measurements of the solutions containing magnesium, lithium etc. are are consistent with the theory. We also investigated the reduction and oxidation processes of the electrolyte solutions containing magnesium, through which magnesium deposits and dissolves, to find a clue what impedes the processes.

Academic Significance and Societal Importance of the Research Achievements

蓄電池などの性能を左右する電解液の伝導度が、何によってどのように決まるかについて、個々のイオンや溶媒の種類を捨象して、一般的な理解ができたことが学術的意義の一つとして挙げられる。現在、一価のイオンであるリチウムに替わって二価のマグネシウムを用いた次世代蓄電池が注目されている。マグネシウムの溶解析出に関する知見と併せて、本研究で得られた理論的理解はこの研究開発に貢献できる。

Report

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

    (3 results)

All 2021 2020

All Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] 非水系MgX2 (X = ClO4, TFSA) 電解液中におけるイオン輸送現象の解析2021

    • Author(s)
      内田悟史、佐野光、尾崎弘幸、清林哲
    • Organizer
      電気化学会第88回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ionic Transport in Non-Aqueous Electrolyte Solutions - (ii) Monte-Carlo Simulation Based on Lattice Gas Model2020

    • Author(s)
      Tetsu Kiyobayashi, Hiroyuki Ozaki, Satoshi Uchida and Hikaru Sano
    • Organizer
      PRiME2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ionic Transport in Non-Aqueous Electrolyte Solutions -(i) Experimental Measurements of Conductivity and Viscosity of MgX2 (X=ClO4-, TFSA-) Dissolved in PC and GBL2020

    • Author(s)
      Hikaru Sano, Satoshi Uchida, Hiroyuki Ozaki and Tetsu Kiyobayashi
    • Organizer
      PRiME2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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

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