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

Stabilization of Battery Cathode Ligand Charge Transfer Based on Non-Equilibrium Electronic Structure Analysis

Research Project

Project/Area Number 18H03929
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionKyoto University

Principal Investigator

Uchimoto Yoshiharu  京都大学, 人間・環境学研究科, 教授 (50193909)

Co-Investigator(Kenkyū-buntansha) 田中 優実  東京理科大学, 工学部工業化学科, 准教授 (00436619)
藤井 達生  岡山大学, 自然科学研究科, 教授 (10222259)
折笠 有基  立命館大学, 生命科学部, 教授 (20589733)
大石 昌嗣  徳島大学, 大学院社会産業理工学研究部(理工学域), 准教授 (30593587)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥43,030,000 (Direct Cost: ¥33,100,000、Indirect Cost: ¥9,930,000)
Fiscal Year 2021: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2020: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
Fiscal Year 2019: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2018: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Keywordsリチウムイオン二次電池 / 電子構造 / 正極活物質 / 高容量正極 / 高エネルギー密度電池 / 高容量 / 蓄電池 / インターカレーション / オペランド解析 / 軟X線吸収分光法 / 電池 / エネルギー / 正極 / 固体材料
Outline of Final Research Achievements

We focused on the charge compensation of anions, not transition metal cations, for lithium-rich oxide cathode materials in which charge compensation of oxide ions occurs during insertion and deinsertion of lithium ions. We established a guideline for the design of materials by controlling anions. We found that oxide ions can contribute reversibly to charge compensation when either the covalent or ionic bonding between transition metal cations and oxide ions is extremely strong. Based on these results, in the field of lithium-rich materials, which have been researched and developed mainly with oxides in the past, high capacity was achieved by replacing some of the oxide ions with nitride ions.

Academic Significance and Societal Importance of the Research Achievements

地球温暖化問題を解決するために、電気自動車等が注目され、長い距離を走行可能な電気自動車の開発には、現存する二次電池よりもさらにエネルギー密度の高い二次電池が必要となる。本課題は、高容量を有するリチウムイオン二次電池正極材料として、期待されているリチウム過剰系材料に着目した。主に、放射光を用いたオペランドX線吸収法によりアニオンである酸素が充放電過程における電荷補償に寄与することにより高容量を発現する機構を解明し、それを基に、従来の酸化物ではなく酸素とともに窒素をアニオンとして含む、酸窒化物高容量正極の開発に成功した。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 5 results) Remarks (1 results)

  • [Int'l Joint Research] Los Alamos National Laboratory/Northeastern University/Carnegie Mellon University(米国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Magnetic Compton scattering study of Li-rich battery materials2022

    • Author(s)
      Kosuke Suzuki, Yuji Otsuka, Kazushi Hoshi, Hiroshi Sakurai, Naruki Tsuji, Kentaro Yamamoto, Naoaki Yabuuchi, Hasnain Hafiz, Yuki Orikasa, Yoshiharu Uchimoto, Yoshiharu Sakurai, Venkatasubramanian Viswanathan, Arun Bansil, and Bernardo Barbiellini
    • Journal Title

      Condensed Matter

      Volume: 7 Issue: 1 Pages: 4-11

    • DOI

      10.3390/condmat7010004

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tomographic reconstruction of oxygen orbitals in lithium-rich battery materials2021

    • Author(s)
      Hasnain Hafiz, Kosuke Suzuki, Bernardo Barbiellini, Naruki Tsuji, Naoaki Yabuuchi, Kentaro Yamamoto, Yuki Orikasa, Yoshiharu Uchimoto, Yoshiharu Sakurai, Hiroshi Sakurai, Arun Bansil & Venkatasubramanian Viswanathan
    • Journal Title

      Nature

      Volume: 594 Issue: 7862 Pages: 213-216

    • DOI

      10.1038/s41586-021-03509-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Disordered Cubic Spinel Structure in the Delithiated Li2MnO3 Revealed by Difference Pair Distribution Function Analysis2020

    • Author(s)
      Oishi Masatsugu、Shimoda Keiji、Ohara Koji、Kabutan Daiki、Kawaguchi Tomoya、Uchimoto Yoshiharu
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 124 Issue: 44 Pages: 24081-24089

    • DOI

      10.1021/acs.jpcc.0c07124

    • NAID

      120007166769

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of oxygen contribution on delithiation process of Li-rich layered 3d transition metal oxides2020

    • Author(s)
      Oishi Masatsugu、Shimoda Keiji、Okada Sojiro、Imura Ryoshi、Yamanaka Keisuke、Yamashige Hisao、Mizuguchi Hitoshi、Watanabe Iwao、Uchimoto Yoshiharu、Ohta Toshiaki
    • Journal Title

      Materials Today Communications

      Volume: 25 Pages: 101673-101673

    • DOI

      10.1016/j.mtcomm.2020.101673

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Relationship between rate performance and electronic/structural changes during oxygen redox of lithium-rich 4d/3d transition metal oxides2020

    • Author(s)
      Watanabe Aruto、Yamamoto Kentaro、Orikasa Yuki、Oishi Masatsugu、Nakanishi Koji、Uchiyama Tomoki、Matsunaga Toshiyuki、Uchimoto Yoshiharu
    • Journal Title

      Solid State Ionics

      Volume: 357 Pages: 115459-115459

    • DOI

      10.1016/j.ssi.2020.115459

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Capacity Improvement by Nitrogen-doping to Lithium Rich Cathode Materials with Stabilization Effect of Oxide Ions Redox2020

    • Author(s)
      Watanabe, Aruto; Yamamoto, Kentaro; Uchiyama, Tomoki; Matsunaga, Toshiyuki; Hayashi, Akitoshi; Maeda, Kazuhiko; Kageyama, Hiroshi; Uchimoto, Yoshiharu
    • Journal Title

      ACS Applied Energy Materials

      Volume: 3 Issue: 5 Pages: 4162-4167

    • DOI

      10.1021/acsaem.0c00564

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural analysis of imperfect Li2TiO3 crystals2020

    • Author(s)
      Watanabe Aruto、Matsunaga Toshiyuki、Abulikemu Aierxiding、Shimoda Keiji、Yamamoto Kentaro、Uchiyama Tomoki、Uchimoto Yoshiharu
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 819 Pages: 153037-153037

    • DOI

      10.1016/j.jallcom.2019.153037

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Charge Compensation Mechanism of Lithium-Excess Metal Oxides with Different Covalent and Ionic Characters Revealed by Operando Soft and Hard X-ray Absorption Spectroscopy2019

    • Author(s)
      Yamamoto Kentaro、Zhou Yingying、Yabuuchi Naoaki、Nakanishi Koji、Yoshinari Takahiro、Kobayashi Takanori、Kobayashi Yuki、Yamamoto Rina、Watanabe Aruto、Orikasa Yuki、Tsuruta Kazuki、Park Jiwon、Byon Hye Ryung、Tamenori Yusuke、Ohta Toshiaki、Uchimoto Yoshiharu
    • Journal Title

      Chemistry of Materials

      Volume: 32 Issue: 1 Pages: 139-147

    • DOI

      10.1021/acs.chemmater.9b02838

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 次世代二次電池の開発動向2022

    • Author(s)
      内本 喜晴
    • Organizer
      化学工学会第87年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 放射光X線を用いた高度解析による電子論的設計指針に基づく電極材料の創生2022

    • Author(s)
      山本 健太郎
    • Organizer
      電気化学会第89回大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] リチウムイオン二次電池と次世代二次電池2021

    • Author(s)
      内本 喜晴
    • Organizer
      京都理化学協会 総会講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Irreversible Reaction of LiFePO4-Li4Ti5O12 Full-cell Using Two-phase Reaction Active Material2020

    • Author(s)
      Yuki Omote, Misaki Katayama, and Yuki Orikasa
    • Organizer
      Annual Meeting of the International Society of Electrochemistry
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 鉄系複酸化物ナノ粒子の合成と Li イオン二次電池への応用2020

    • Author(s)
      渡辺 穂香,藤井 達生
    • Organizer
      第59回セラミックス基礎科学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Direct observation of anion redox in Li-excess oxides with different covalent and ionic characters by operando Soft/Hard X-ray absorption2019

    • Author(s)
      Kentaro Yamamoto
    • Organizer
      MRM 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射光を用いたリチウムイオン二次電池の反応解析2019

    • Author(s)
      内本喜晴
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Anion Redox Mechanism in Li-Excess Oxides with Different Ionic or Covalent Characters2018

    • Author(s)
      Kentaro Yamamoto, Naoaki Yabuuchi, Koji Nakanishi, Tomoki Uchiyama,Yuki Kobayashi, Rina Yamamoto, Yuki Orikasa, Hye Ryung Byon,Toshiaki Ohta & Yoshiharu Uchimoto
    • Organizer
      CMCEE 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electrochemical performance and charge compensation mechanism of cation-disordered2018

    • Author(s)
      J. Nishitsuji, K. Yamamoto, T. Uchiyama, A. Watanabe and Y. Uchimoto
    • Organizer
      16th ACSSI
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Charge compensation mechanism in Li-excess Oxides revealed by operando soft/hard X-ray absorption spectroscopy2018

    • Author(s)
      Kentaro Yamamoto, Naoaki Yabuuchi, Koji Nakanishi, Tomoki Uchiyama, Yuki Kobayashi, Rina Yamamoto, Yuki Orikasa, Toshiaki Ohta & Yoshiharu Uchimoto
    • Organizer
      AiMES 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Remarks] リチウムイオン二次電池高容量正極材料の開発

    • URL

      http://www.uchimoto.jinkan.kyoto-u.ac.jp/about

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi