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Development of electrolyte for high-voltage potassium secondary battery

Research Project

Project/Area Number 19K15686
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Yoshii Kazuki  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 (80735960)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords電解液 / カリウム電池 / イオン液体 / 金属負極 / 高電位正極 / カリウム / 二次電池 / 溶媒和構造
Outline of Research at the Start

カリウム二次電池は、資源的優位性や高電圧化が見込めることから、次世代の蓄電デバイスとして注目されている。正負極の電極材料の研究が急速に進んでいる一方、電解液については研究例が少ないのが現状である。本研究では、カリウム二次電池における高電位正極および負極の両方に適合する電解液の開発に取り組む。研究期間内に、電解液の詳細なスクリーニングを通して適合可能な電解液を抽出し、体系化に向けた解析および考察を行う。併せてカリウム二次電池用の新規添加剤についても検討する。得られた知見をリチウム二次電池系と比較することで、現行のリチウム二次電池の電解液研究へのフィードバックも期待される。

Outline of Final Research Achievements

In the present study, the electrolyte for potassium secondary batteries with high voltage was investigated. Various electrolytes were investigated using a potassium-containing composite oxide as a cathode that exhibits an average voltage of 4 V. It was found that an ionic liquid consisting of pyrrolidinium cations could be a promising candidate for the electrolyte. It is also confirmed that the organic electrolyte with high salt concentration was favorable as the electrolyte. We also tried to find additives and develop ionic liquid-based electrolytes with high ionic conductivity.

Academic Significance and Societal Importance of the Research Achievements

カリウム二次電池は資源的な優位性などの点から次世代蓄電池として注目され、世界中で研究例が急増している。電池の構成要素である、正極材料、負極材料、電解液の中で、電解液に関する研究はそれほど多くない。本研究で得られた成果は、カリウム二次電池用電解液として有望な候補を示すことができたと考えており、学術的および社会的に意義のあるものであると考えられる。

Report

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

    (12 results)

All 2022 2021 2020 2019

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Cation‐Structure Effects on Zinc Electrodeposition and Crystallographic Orientation in Ionic Liquids2022

    • Author(s)
      Shimizu Masahiro、Sugiyama Yusuke、Horita Masaomi、Yoshii Kazuki、Arai Susumu
    • Journal Title

      ChemElectroChem

      Volume: - Issue: 10

    • DOI

      10.1002/celc.202200016

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrodeposition of Metals and Preparation of Metal Nanoparticles in Nonaqueous Electrolytes and Their Application to Energy Devices2021

    • Author(s)
      Yoshii Kazuki
    • Journal Title

      Electrochemistry

      Volume: 89 Issue: 6 Pages: 536-543

    • DOI

      10.5796/electrochemistry.21-00078

    • NAID

      130008113603

    • ISSN
      1344-3542, 2186-2451
    • Year and Date
      2021-11-05
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ether‐Functionalized Pyrrolidinium‐Based Room Temperature Ionic Liquids: Physicochemical Properties, Molecular Dynamics, and the Lithium Ion Coordination Environment2021

    • Author(s)
      Yoshii Kazuki、Uto Takuya、Onishi Takakazu、Kosuga Daichi、Tachikawa Naoki、Katayama Yasushi
    • Journal Title

      ChemPhysChem

      Volume: 22 Issue: 15 Pages: 1584-1594

    • DOI

      10.1002/cphc.202100380

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ピロリジニウム型イオン液体の構造物性相関とカリウム二次電池への応用2021

    • Author(s)
      吉井一記
    • Journal Title

      溶融塩および高温化学

      Volume: 64 Pages: 25-32

    • NAID

      40022475757

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The effects of the position of the ether oxygen atom in pyrrolidinium-based room temperature ionic liquids on their physicochemical properties2020

    • Author(s)
      Yoshii Kazuki, Uto Takuya, Tachikawa Naoki, Katayama Yasushi
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 22 Issue: 35 Pages: 19480-19491

    • DOI

      10.1039/d0cp02662j

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Potential Cathode Material for Rechargeable Potassium-Ion Batteries Inducing Manganese Cation and Oxygen Anion Redox Chemistry: Potassium-Deficient K0.4Fe0.5Mn0.5O22020

    • Author(s)
      Masese Titus、Yoshii Kazuki、Tada Kohei、Kato Minami、Uchida Satoshi、Kubota Keigo、Ina Toshiaki、Okumura Toyoki、Huang Zhen-Dong、Furutani Junya、Orikasa Yuki、Senoh Hiroshi、Tanaka Shingo、Shikano Masahiro
    • Journal Title

      Energy Technology

      Volume: 1 Issue: 6 Pages: 2000039-2000039

    • DOI

      10.1002/ente.202000039

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sulfonylamide‐Based Ionic Liquids for High‐Voltage Potassium‐Ion Batteries with Honeycomb Layered Cathode Oxides2019

    • Author(s)
      Yoshii Kazuki、Masese Titus、Kato Minami、Kubota Keigo、Senoh Hiroshi、Shikano Masahiro
    • Journal Title

      ChemElectroChem

      Volume: 6 Issue: 15 Pages: 3901-3910

    • DOI

      10.1002/celc.201900689

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ピロリジニウム型イオン液体の構造物性相関とカリウム二次電池への応用2021

    • Author(s)
      吉井一記
    • Organizer
      溶融塩委員会第204回定例委員会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 非水電解液系における金属電析および金属ナノ粒子作製とエネルギーデバイスへ の応用に関する研究2021

    • Author(s)
      吉井一記
    • Organizer
      電気化学会第88回大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Bis(Trifluoromethanesulfonyl)Amide-Based Room Temperature Ionic Liquid for Potassium-Ion Batteries2020

    • Author(s)
      Yoshii Kazuki, Masese Titus, Shikano Masahiro
    • Organizer
      PRiME2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] カリウムイオン二次電池用正極材料の合成、構造解析と電気化学特性2019

    • Author(s)
      マセセ タイタス、吉井 一記、加藤 南、内田 悟史、妹尾 博
    • Organizer
      2019年 電気化学秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] X線吸収分光法を用いたカリウムイオン二次電池用新規正極材料の反応機構解明2019

    • Author(s)
      マセセ タイタス、吉井 一記、加藤 南、内田 悟史、窪田 啓吾、古谷 隼也、折笠 有基、妹尾 博
    • Organizer
      第60回電池討論会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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