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

Systematic Understanding of the Formation Process of Lithium Peroxide for Increasing the Capacity of Aprotic Lithium Air Batteries

Research Project

Project/Area Number 18H02073
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 InstitutionOsaka University

Principal Investigator

Nakanishi Shuji  大阪大学, 太陽エネルギー化学研究センター, 教授 (40333447)

Co-Investigator(Kenkyū-buntansha) 松田 翔一  国立研究開発法人物質・材料研究機構, エネルギー・環境材料研究拠点, 主任研究員 (30759717)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords次世代二次電池 / リチウム空気電池 / リチウム酸素電池
Outline of Final Research Achievements

In this study, we found that the surface modification of the cathode dramatically improved the discharge capacity in acetonitrile (MeCN) solvent. In addition, it was found that the discharge capacity-discharge potential dependence changed depending on the mixing ratio of MeCN and other solvents. Importantly, by mixing the two solvents, both the discharge capacity and the onset potential of the discharge reaction current (oxygen reduction reaction current) are simultaneously increased. Based on electrochemical spectroscopic measurements, it was revealed that the fine tuning of the relative stability between the adsorbed and solvated reaction intermediates is critical for increasing the discharge capacity.

Academic Significance and Societal Importance of the Research Achievements

リチウム空気電池は、現行のリチウムイオン電池を遥かに超える理論重量エネルギー密度を有し、携帯基地局やドローンなどへの搭載が期待されている。しかし、現状ではその特性を十分に発現させる基本原理が明らかにされていない。本研究では、正極電極表面の化学状態、電極電位、ならびに電解液の化学組成を変えることでエネルギー密度が向上することを明らかにし、本来期待されるリチウム空気電池の特性を今後引き出す上での基本設計指針を得ることができた。

Report

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

Research Products

(21 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (16 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results)

  • [Journal Article] An ordinary differential equation model for simulating secondary battery reactions2021

    • Author(s)
      Morimoto Kota、Nakanishi Shuji、Mukouyama Yoshiharu
    • Journal Title

      Electrochemistry Communications

      Volume: 126 Pages: 107011-107011

    • DOI

      10.1016/j.elecom.2021.107011

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Isotopic Depth Profiling of Discharge Products Identifies Reactive Interfaces in an Aprotic Li?O2 Battery with a Redox Mediator2021

    • Author(s)
      Nishioka Kiho、Morimoto Kota、Kusumoto Takayoshi、Harada Takashi、Kamiya Kazuhide、Mukouyama Yoshiharu、Nakanishi Shuji
    • Journal Title

      Journal of the American Chemical Society

      Volume: - Pages: 7394-7401

    • DOI

      10.1021/jacs.1c00868

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synergistic Effect of Binary Electrolyte on Enhancement of the Energy Density in Li?O2 Batteries2020

    • Author(s)
      Hase Yoko、Nishioka Kiho、Komori Yasuhiro、Kusumoto Takayoshi、Seki Juntaro、Kamiya Kazuhide、Nakanishi Shuji
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 11 Pages: 7657-7663

    • DOI

      10.1021/acs.jpclett.0c01877

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic Changes in Charge Transfer Resistances during Cycling of Aprotic Li?O2 Batteries2020

    • Author(s)
      Morimoto Kota、Kusumoto Takayoshi、Nishioka Kiho、Kamiya Kazuhide、Mukouyama Yoshiharu、Nakanishi Shuji
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 12 Pages: 42803-42810

    • DOI

      10.1021/acsami.0c11382

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Expansion of the Potential Region for Sustained Discharge of Non-aqueous Li-O<sub>2</sub> Batteries Using an Oxygen-enriched Carbon Cathode2019

    • Author(s)
      Nishioka Kiho、Morimoto Kota、Kusumoto Takayoshi、Harada Takashi、Hase Yoko、Kamiya Kazuhide、Nakanishi Shuji
    • Journal Title

      Chem. Lett.

      Volume: 48 Issue: 6 Pages: 562-565

    • DOI

      10.1246/cl.190070

    • NAID

      130007659797

    • ISSN
      0366-7022, 1348-0715
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Br-/Br3-メディエーターを含む非水系リチウム空気電池における放電生成物の分解特性2021

    • Author(s)
      田中瑞希、西岡季穂、森本航大、中西周次
    • Organizer
      電気化学会第88回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Expansion of the potential region for the sustained discharge of non-aqueous Li-O2 batteries by surface modifications of the positive electrode2020

    • Author(s)
      西岡季穂、中西周次
    • Organizer
      71st Annual Meeting of the International Society of Electrochemistry
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] リチウム空気電池の充放電サイクル過程における電荷移動抵抗の動的変化2020

    • Author(s)
      森本航太、楠元崇孔、西岡季穂、向山義治、神谷和秀、中西周次
    • Organizer
      第61回電池討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Potential Dependences of Discharge Characteristics of Li-O2 Batteries with Various Electrolytes2019

    • Author(s)
      西岡季穂、楠元崇孔、森本航太、長谷陽子、中西周次
    • Organizer
      235th ECS Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Expansion of the optimal potential window for prolonged discharge capacity of Li-O2 batteries by surface modifications of a cathode2019

    • Author(s)
      西岡季穂、楠元崇孔、森本航太、原田隆史、神谷和秀、中西周次
    • Organizer
      2nd Nucleation and Growth Research Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Discharge/charge properties of Li-O2 batteries under potential control conditions2019

    • Author(s)
      森本航太、楠元崇孔、西岡季穂、原田隆史、神谷和秀、中西周次
    • Organizer
      2nd Nucleation and Growth Research Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Critical factor determining the capacity of lithium-oxygen batteries2019

    • Author(s)
      中西周次
    • Organizer
      2nd Nucleation and Growth Research Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] リチウム空気電池の充放電サイクル特性の劣化過程 -電位制御試験による検討-2019

    • Author(s)
      森本航太、西岡季穂、楠元崇孔、原田隆史、神谷和秀、中西周次
    • Organizer
      日本化学会秋季事業第9回CSJ化学フェスタ2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] リチウム空気電池の放電容量の正極電位依存性 -実験と速度論シミュレーション-2019

    • Author(s)
      森本航太、向山義治、原田隆史、神谷和秀、中西周次
    • Organizer
      第60回電池討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] リチウム空気電池充電過程におけるLi2O2酸化分解の正極電位依存性2019

    • Author(s)
      楠元崇孔、森本航太、西岡季穂、原田隆史、神谷和秀、中西周次
    • Organizer
      第60回電池討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 正極表面改質による非水系リチウム空気電池の放電容量の向上2019

    • Author(s)
      西岡季穂、楠元崇孔、森本航太、原田隆史、神谷和秀、中西周次
    • Organizer
      2019年電気化学会第86回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 種々の溶媒を用いたリチウム空気電池の電位制御下における充放電特性2019

    • Author(s)
      森本航太、西岡季穂、楠元崇孔、原田隆史、神谷和秀、中西周次
    • Organizer
      2019年電気化学会第86回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Critical factor determining the capacity of lithium-oxygen batteries2019

    • Author(s)
      中西周次
    • Organizer
      Handai-Kandai-GiessenDai Joint Seminar on Materials Science
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Critical factor determining the capacity of lithium-oxygen batteries2019

    • Author(s)
      西岡季穂、中西周次
    • Organizer
      Handai-Kandai-GiessenDai Joint Seminar on Materials Science
    • Related Report
      2018 Annual Research Report
  • [Presentation] リチウム空気電池の作動電位制御による放電特性の向上2018

    • Author(s)
      西岡季穂、楠元崇孔、森本航太、志賀亨、原田隆史、神谷和秀、長谷陽子、中西周次
    • Organizer
      第59回電池討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 電位規制条件におけるリチウム空気電池の放電特性2018

    • Author(s)
      楠元崇孔、西岡季穂、森本航太、神谷和秀、志賀亨、長谷陽子、中西周次
    • Organizer
      2018年電気化学会秋季大会
    • Related Report
      2018 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi