• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Lithium secondary batteries using ionic liquid electrolyte operable at high temperatures

Research Project

Project/Area Number 19H02811
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionKyoto University

Principal Investigator

Hagiwara Rika  京都大学, エネルギー科学研究科, 教授 (30237911)

Co-Investigator(Kenkyū-buntansha) 松本 一彦  京都大学, エネルギー科学研究科, 准教授 (30574016)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywordsイオン液体 / リチウム二次電池 / 電解質 / 金属負極 / デンドライト / 高電位正極 / 高出力 / 高エネルギー密度 / リチウムイオン電池 / 高温作動
Outline of Research at the Start

電力貯蔵用の大型二次電池の開発において、現行の小型電子機器用の二次電池を、単純にスケールアップして、構造のマイナーチェンジや付帯装置を追加したりして対応させるのではなく、電池材料の構成そのものを変更して、高性能化を目的とした高温作動用の新しい二次電池を開発する方向性を新たに提案する。
その上で、本研究では
①高温域(60℃~200℃程度)で作動可能なリチウム二次電池用材料の開発
②高温作動によるリチウム二次電池の高性能化
を目指す。

Outline of Final Research Achievements

We conducted research on lithium secondary batteries using ionic liquid electrolytes which are non-flammable and are expected to improve the safety of large secondary batteries for power storage and improve performance at high temperature operation. We examined the characteristics of ionic liquid electrolytes and optimizing their composition, suppressing dendrite formation through modification such as addition of salt, enabling high capacity and output through medium to high temperature operation. We investigated charge-discharge characteristics of positive electrode active materials such as iron sulfide and iron fluoride, manganese fluoride and their composite fluorides, trirutile lithium iron fluoride that do not contain rare elements, and negative electrode active materials such as carbon, metallic lithium, and niobium oxide. We also clarified the corrosion-inhibiting effect of ionic liquid electrolyte on aluminum current collectors when using high-potential positive electrodes.

Academic Significance and Societal Importance of the Research Achievements

脱炭素社会実現のための太陽光、風力などの再生可能エネルギー利用のためには、これら低出力のエネルギーを貯蔵し、高出力化して利用するためのエネルギー貯蔵システムが不可欠である。このためには車載用や定置型電力貯蔵用の大型二次電池が大量に必要となる。現状のリチウム二次電池は小型電子機器などの用途で開発されたものを改良して大型化したものであるが、資源的制約、安全性など、脱炭素社会の実現には多くの課題がある。不揮発性、不燃性という特長をもち、中高温で使用できるイオン液体電解質の利用はリチウム二次電池の安全性の向上とともに資源的に豊富な電極材料の使用を可能にし、電池の性能を向上することが期待できる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (24 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (18 results)

  • [Journal Article] Inducing a Conductive Surface Layer on Nb2O5via Argon-Ion Bombardment: Enhanced Electrochemical Performance for Li-Ion Batteries2023

    • Author(s)
      Shaoning Zhang, Jinkwang Hwang, Yuta Sato, Kazuhiko Matsumoto, Rika Hagiwara
    • Journal Title

      ACS Applied Energy Materials

      Volume: 6 Pages: 2333-2339

    • DOI

      10.26434/chemrxiv-2022-qpc96-v2

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In Situ Orthorhombic to Amorphous Phase Transition of Nb<sub>2</sub>O<sub>5</sub> and Its Temperature Effect on Pseudocapacitive Behavior2022

    • Author(s)
      Zhang Shaoning、Hwang Jinkwang、Matsumoto Kazuhiko、Hagiwara Rika
    • Journal Title

      ACS Applied Materials and Interfaces

      Volume: 14 Issue: 17 Pages: 19426-19436

    • DOI

      10.1021/acsami.2c01550

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Charge-discharge properties and reaction mechanism of cation-disordered rutile-type Li1.2MnFe1.2F6.82022

    • Author(s)
      Yayun Zheng, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Journal Title

      Electrochimica Acta

      Volume: 405 Pages: 139627-139627

    • DOI

      10.1016/j.electacta.2021.139627

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electrochemical and Structural Behavior of Trirutile-Derived FeF3 During Sodiation and Desodiation2022

    • Author(s)
      Yayun Zheng, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Journal Title

      ACS Applied Energy Materials

      Volume: 5 Issue: 3 Pages: 3137-3145

    • DOI

      10.1021/acsaem.1c03756

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase Evolustion of Trirutile Li0.5FeF3 for Lithium-ion Batteries2021

    • Author(s)
      yayun Zheng, Shinya Tawa, Jinkwang Hwang, Yuki Orikasa, Kazuhiko Matsumoto, Rika Hagiwara
    • Journal Title

      Chemistry of Materials

      Volume: 33 Issue: 3 Pages: 868-880

    • DOI

      10.1021/acs.chemmater.0c03544

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ionic liquid electrolyte for room to intermediate temperature operating Li metal batteries: Dendrite suprresion and improved performance2020

    • Author(s)
      Jinkwang Hwang, Haruki Okada, Ryutaro Haraguchi, Shinya Tawa, Kazuhiko Matsumoto, Rika Hagiwara
    • Journal Title

      Journal of Power Sources

      Volume: 453 Pages: 227911-227911

    • DOI

      10.1016/j.jpowsour.2020.227911

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Decomposition behavior of unprotected organic cations in ionic liquid electrolytes on graphite negative electrodes2024

    • Author(s)
      張 劭寧,呉 聖安,黄 珍光,松本 一彦,萩原 理加
    • Organizer
      第91回電気化学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Stabilized cycle performance of LiNiO2 positive electrode in highly Li-concentrated ionic liquid electrolytes2024

    • Author(s)
      Huazhen Liu, Hiroki Maeda, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第91回電気化学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Reductive Decomposition Behavior of Less Coordinated Organic Cations on Graphite Electrodes in the Ionic Liquid2023

    • Author(s)
      Shaoning Zhang, Shengan Wu, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第64回電池討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effect of Li Salt Concentrations on Interaction Between Organic Cations and FSA- Anions in Ionic Liquid Electrolytes2023

    • Author(s)
      Shaoning Zhang, Shengan Wu, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第13回イオン液体討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] FSA系イオン液体中におけるリチウム析出溶解挙動にアニオン種が与える影響2023

    • Author(s)
      西垣勇飛, 呉 聖安, 黄 珍光,松本 一彦,萩原 理加
    • Organizer
      第13回イオン液体討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lithium Storage Mechanisms of Niobium Oxides at Intermediate Temperature Using Ionic Liquid Electrolyte2023

    • Author(s)
      Shaoning Zhang, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第90回電気化学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ar-ion Bombardment on Nb2O5 Introduces Electronically Conductive Surface Layer2022

    • Author(s)
      Shaoning Zhang, Jinkwang Hwang, Yuta Sato, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第23回化学電池材料研究会ミーティング
    • Related Report
      2022 Annual Research Report
  • [Presentation] Introduction of Conductive NbOx Species on Nb2O5 Surface via Ar-Ion Bombardmen2022

    • Author(s)
      Shaoning Zhang, Jinkwang Hwang, Yuta Sato, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第63回電池討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] イオン液体電解質中におけるLiNiO2の充放電特性評価2022

    • Author(s)
      前田浩希、黄珍光、松本一彦、萩原理加
    • Organizer
      第12回イオン液体討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] The effect of Li[FSA] concentration in an ionic liquid electrolyte on stable cycling of trirutile Li0.5FeF32022

    • Author(s)
      Yayun Zheng, Nana Matsumoto, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第89回電気化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Effect of Temperature on Ultrafast Pseudocapacitive Behavior of Nb2O5 and Lithium Storage Mechanism2022

    • Author(s)
      Shaoning Zhang, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第89回電気化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] lectrochemical behavior of trirutile Li0.5FeF3 for a positive electrode material of lithium-ion batteries2021

    • Author(s)
      Yayun Zheng, Shinya Tawa, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第22回化学電池材料研究会ミーティング
    • Related Report
      2021 Annual Research Report
  • [Presentation] Electrochemical properties and behavior of trirutile-derived FeF3 as a cathode for sodium batteries2021

    • Author(s)
      Yayun Zheng, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第62回電池討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Temperature Effect on Pseudocapacitive Response of Nb2O5 Utilizing Ionic Liquid Electrolyte2021

    • Author(s)
      Shaoning Zhang, Jinkwang Hwang, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第62回電池討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Electrochemical behavior of trirutile Li0.5FeF3 in ionic liquid electrolyte2020

    • Author(s)
      Yayun Zheng, Shinya Tawa, Jinkwang Hwang, Yuki Orikasa, Kazuhiko Matsumoto, Rika Hagiwara
    • Organizer
      第61回電池討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ionic Liquid Electrolyte Suppresses Li Dendrite and Enables Li Metal Battery2020

    • Author(s)
      黄 珍光、原口 隆太郎、岡田 春輝、田和 慎也、松本 一彦、萩原 理加
    • Organizer
      第52回溶融塩化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] イオン液体を電解液に用いた中低温作動リチウム金属電池のFeS2正極の挙動2020

    • Author(s)
      原口 隆太郎、黄 珍光、松本 一彦、萩原 理加
    • Organizer
      電気化学会第87回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 鉄系材料を正極に用いた中低温作動リチウム金属電池の開発2019

    • Author(s)
      原口隆太郎, 黄珍光, 松本一彦, 萩原理加
    • Organizer
      第51回溶融塩化学討論会
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi