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Control of Li-ion Desolvation at the Interface between Cathode and Liquid Electrolyte using Metal Organic Frameworks

Research Project

Project/Area Number 21K14727
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionYonago National College of Technology

Principal Investigator

Shimizu Takeshi  米子工業高等専門学校, 総合工学科, 特命助教 (50845386)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywords電極|電解液界面 / 脱溶媒和 / 金属有機構造体
Outline of Research at the Start

リチウムイオン電池の電極反応において、活物質|電解液界面でのリチウムイオンの脱溶媒和が律速段階であり、脱溶媒和を促す活物質表面の設計が重要である。脱溶媒和を促進するには、溶媒分子の極性基がリチウムイオンよりも強く相互作用する表面が必要だが、現状ではその報告が少ない。本研究では、親水基NH2がカルボニル基と相互作用すること、および金属有機構造体(MOF)の一つMIL-101(Fe)に含まれる配位子テレフタル酸をアミノテレフタル酸に置換できる点に着目し、活物質としたMOFの親水基NH2の存在比に対する脱溶媒和エネルギーの相関から、高速充放電可能な活物質表面の設計指針を得る。

Outline of Final Research Achievements

In this study, for the purpose of realizing high-speed charging/discharging based on promotion of desolvation of lithium ions at the electrode/electrolyte interface, we investigated a metal-organic framework MIL-101(Fe) composed of iron ions Fe3+ and 2-aminoterephthalic acid. A lithium-ion battery with -NH2 as the positive electrode active material was fabricated. Charge/discharge and AC impedance measurements of lithium-ion batteries showed that MIL-101(Fe)-NH2 had a larger capacity and a smaller charge transfer resistance than MIL-101(Fe). This suggests that the desolvation of lithium ions at the electrode/electrolyte interface is promoted by the hydrogen bond between the surface hydrophilic group NH2 and the carbonyl group of the electrolyte molecule as the driving force.

Academic Significance and Societal Importance of the Research Achievements

近年、脱炭素社会の実現に向けて電気自動車の普及が進められているが、蓄電池の充電時間が長いため普及率は1割にも満たない。また、電極|電解液界面におけるリチウムイオンの脱溶媒和が律速段階であり、現在の活物質開発技術では脱溶媒和を促進することが困難である。本研究では、活物質に極性基を導入することで蓄電池の充電時間を短縮できることが示唆され、電気自動車の普及に貢献するとともに、電極|電解液界面におけるリチウムイオンの脱溶媒和を促進する新しい手法を見出した。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results) Book (1 results)

  • [Journal Article] Assessment of Dye-Absorbed Eggshell Membrane Composites as Solid Polymer Electrolyte of Fuel Cells2023

    • Author(s)
      Tanifuji Naoki、Shimizu Takeshi、Ida Kentaro、Nishio Kosuke、Tanaka Miki、Tsukaguchi Yuta、Tsubouchi Kentaro、Shimizu Akihiro、Hino Ei-ichi、Date Yusuke、Aoki Kaoru、Yoshikawa Hirofumi
    • Journal Title

      Membranes

      Volume: 13 Issue: 1 Pages: 115-115

    • DOI

      10.3390/membranes13010115

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultra-High-Capacity Lithium Metal Batteries Based on Multi-Electron Redox Reaction of Organopolysulfides including Conductive Organic Moieties2023

    • Author(s)
      Shimizu Takeshi、Tanifuji Naoki、Nishio Kosuke、Tanaka Yuma、Tsukaguchi Yuta、Tsubouchi Kentaro、Nakamura Fumiya、Shokura Naoko、Noguchi Mariko、Fujimori Hiroki、Kimura-Suda Hiromi、Date Yusuke、Aoki Kaoru、Yoshikawa Hirofumi
    • Journal Title

      Polymers

      Volume: 15 Issue: 2 Pages: 335-335

    • DOI

      10.3390/polym15020335

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of Porous Coordination Polymer Containing Aromatic Azo Linkers as Cathode Active Materials in Sodium-Ion Batteries Application of Porous Coordination Polymer Containing Aromatic Azo Linkers as Cathode Active Materials in Sodium-Ion Batteries2022

    • Author(s)
      Takeshi Shimizu, Takumi Mameuda, Hiroki Toshima, Ryohei Akiyoshi, Yoshinobu Kamakura, Katsuhiro Wakamatsu, Daisuke Tanaka, and Hirofumi Yoshikawa
    • Journal Title

      ACS Appl. Energy Mater

      Volume: 5 Issue: 4 Pages: 5191-5198

    • DOI

      10.1021/acsaem.2c00537

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Assessment of Eggshell Membrane as a New Type of Proton-Conductive Membrane in Fuel Cells2022

    • Author(s)
      Tanifuji Naoki、Shimizu Takeshi、Yoshikawa Hirofumi、Tanaka Miki、Nishio Kosuke、Ida Kentaro、Shimizu Akihiro、Hasebe Yukio
    • Journal Title

      ACS Omega

      Volume: 7 Issue: 15 Pages: 12637-12642

    • DOI

      10.1021/acsomega.1c06687

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Azo Compounds as Active Materials of Energy Storage Systems2022

    • Author(s)
      Shimizu Takeshi、Tanifuji Naoki、Yoshikawa Hirofumi
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 36 Pages: 1-15

    • DOI

      10.1002/anie.202206093

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Changes in Crystal Structure and Battery Performance of MIL-101 (Fe) upon Introduction of Substituent NH22021

    • Author(s)
      Takeshi Shimizu, Ayako Murakami, Misaki Yamamura, Hiroshi Imamura, Hirona Yamagishi, and Yusaku Yamamoto
    • Journal Title

      Mem. SR Center Ritsumeikan Univ.

      Volume: 23 Pages: 15-18

    • NAID

      130008077230

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Book] 二次電池の材料に関する最新技術開発2022

    • Author(s)
      執筆者:75名、技術情報協会
    • Total Pages
      738
    • Publisher
      技術情報協会
    • ISBN
      9784861048852
    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2024-01-30  

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