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Development of fast ionic conductors for next generation batteries by using soft and giant closo-ions

Research Project

Project/Area Number 18H03832
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionTohoku University

Principal Investigator

Takamura Hitoshi  東北大学, 工学研究科, 教授 (30250715)

Co-Investigator(Kenkyū-buntansha) 及川 格  東北大学, 工学研究科, 助教 (40733134)
松尾 元彰  関西学院大学, 理工学部, 准教授 (20509038)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000)
Fiscal Year 2022: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2021: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2020: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2019: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2018: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Keywordsリチウムイオン伝導体 / 全固体電池 / 高圧合成 / 固体NMR / イオン伝導体 / リチウムイオン伝導 / セラミックス材料 / クロソイオン / 核磁気共鳴 / リチウム二次電池
Outline of Final Research Achievements

This project focuses on a lithium-ion conductor with a giant close-do elaborate anion [B12H12]2- to enhance its ionic conductivity and get deep insight into the conduction mechanism. Li2B12H12 was successfully prepared by a high-pressure synthesis technique using LiBH4 and B10H14 as raw materials. The samples showing nonstoichiometry and hydrogen deficiency were prepared by adjusting the ratio of raw materials and adding Ti metal as a hydrogen getter. In addition, Mg2+, Ca2+, and even a giant organic cation of methylammonium (CH3NH3+) can be substituted. New electrode materials, protective layers, and room-temperature formable composite-type electrolytes with an oxide phase were also explored.

Academic Significance and Societal Importance of the Research Achievements

高圧合成により新たなリチウムイオン伝導体を合成した。特に、巨大なクロソイオンを含む材料系で、種々の置換が可能であり、それが不定比性、構造、伝導度に及ぼす影響を明らかにできたことに学術的意義がある。社会的意義としては、固体電解質として全固体電池への適用を目指し、周辺材料(化学的両立性をもつ電極や保護層)の検討を行い、酸化物系で焼結がいらない複合体型電解質を提案したことがあげられる。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (19 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (13 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 13 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Int'l Joint Research] University of Washington/Massachusetts Institute of Technology(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Sintering-free preparation of Li7La3Zr2O12-LiBH4-based solid-state electrolytes and their electrical conductivities2023

    • Author(s)
      Youtaro Sakamoto, Akihiro Ishii, Takashi Shiratori, Itaru Oikawa, Hitoshi Takamura
    • Journal Title

      Electrochimica Acta

      Volume: 457 Pages: 142488-142488

    • DOI

      10.1016/j.electacta.2023.142488

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Insight into low-temperature sintering of samarium-doped ceria mixed with scavenging lithium2022

    • Author(s)
      Ishii Akihiro、Ishijima Hibiki、Kobayashi Kosei、Oikawa Itaru、Takamura Hitoshi
    • Journal Title

      Acta Materialia

      Volume: 224 Pages: 117529-117529

    • DOI

      10.1016/j.actamat.2021.117529

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antireflective black coatings comprised of Ag?Fe?O thin films with high electrical resistivity2022

    • Author(s)
      Yamaguchi Mina、Ishii Akihiro、Oikawa Itaru、Yamazaki Yusuke、Imura Masaaki、Takamura Hitoshi
    • Journal Title

      APL Materials

      Volume: 10 Issue: 3 Pages: 031102-031102

    • DOI

      10.1063/5.0081463

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heat-Resistant Black Insulative Thin Films for Flat-Panel Displays in Al-Doped Ag?Fe?O Systems2021

    • Author(s)
      Yamaguchi Mina、Ishii Akihiro、Oikawa Itaru、Yamazaki Yusuke、Imura Masaaki、Takamura Hitoshi
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 13 Issue: 48 Pages: 57971-57980

    • DOI

      10.1021/acsami.1c17599

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydride-based antiperovskites with soft anionic sublattices as fast alkali ionic conductors.2021

    • Author(s)
      Shenghan Gao, Thibault Broux, Susumu Fujii, Cedric Tassel, Kentaro Yamamoto, Yao Xiao, Itaru Oikawa, Hitoshi Takamura, Hiroki Ubukata, Yuki Watanabe, Kotaro Fujii, Masatomo Yashima, Akihide Kuwabara, Yoshiharu Uchimoto, Hiroshi Kageyama
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 201-201

    • DOI

      10.1038/s41467-020-20370-2

    • NAID

      120006954090

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Black titanium oxynitride thin films prepared by nitrogen plasma-assisted pulsed laser deposition for flat-panel displays2020

    • Author(s)
      Yamaguchi Mina、Ishii Akihiro、Oikawa Itaru、Takamura Hitoshi
    • Journal Title

      Applied Surface Science

      Volume: 534 Pages: 147616-147616

    • DOI

      10.1016/j.apsusc.2020.147616

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Catalytic activity for dissociative oxygen adsorption of Co-based oxides at high temperature evaluated by a modified pulse isotopic exchange technique2020

    • Author(s)
      Tomura Yuto、Tazawa Toma、Oikawa Itaru、Takamura Hitoshi
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 8 Issue: 41 Pages: 21634-21641

    • DOI

      10.1039/d0ta04747c

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optically Black and Electrically Insulating Ag?Fe?O‐Based Thin Films for Touch Panel Displays2020

    • Author(s)
      Ishii Akihiro、Yamaguchi Mina、Oikawa Itaru、Yamazaki Yusuke、Imura Masaaki、Kanai Toshimasa、Takamura Hitoshi
    • Journal Title

      physica status solidi (RRL) ? Rapid Research Letters

      Volume: 14 Issue: 8 Pages: 2000160-2000160

    • DOI

      10.1002/pssr.202000160

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Negative Knight Shift in Ba-Ti Oxyhydride: An Indication of the Multiple Hydrogen Occupation2019

    • Author(s)
      Misaki Tai、Oikawa Itaru、Takamura Hitoshi
    • Journal Title

      Chemistry of Materials

      Volume: 31 Issue: 18 Pages: 7178-7185

    • DOI

      10.1021/acs.chemmater.9b01434

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of electrochemical reduction behavior in nonequilibrium Al-doped TiO2 thin films2019

    • Author(s)
      Ishii Akihiro、Oikawa Itaru、Takamura Hitoshi
    • Journal Title

      Journal of Applied Physics

      Volume: 126 Issue: 21 Pages: 215108-215108

    • DOI

      10.1063/1.5123408

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxygen vacancy order-disorder transition at high temperature in Bi-Sr-Fe-based perovskite-type oxides2019

    • Author(s)
      Tomura Yuto、Oikawa Itaru、Takamura Hitoshi
    • Journal Title

      Physical Review Materials

      Volume: 3 Issue: 12

    • DOI

      10.1103/physrevmaterials.3.125802

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Large and constant absorption coefficient in NbxTi1-xO2 thin films throughout the visible range2019

    • Author(s)
      Adam E. Shimabukuro, Akihiro Ishii, Itaru Oikawa, Yusuke Yamazaki, Masaaki Imura, Toshimasa Kanai, Fumio S. Ohuchi, Hitoshi Takamura
    • Journal Title

      Applied Surface Science

      Volume: 464 Pages: 61-67

    • DOI

      10.1016/j.apsusc.2018.09.036

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stabilizing Coexisting n-Type Electronic and Oxide Ion Conductivities in Donor-Doped Ba-In-Based Oxides under Oxidizing Conditions: Roles of Oxygen Disorder and Electronic Structure2019

    • Author(s)
      Yukio Cho, Masayuki Ogawa, Itaru Oikawa, Harry L. Tuller, Hitoshi Takamura
    • Journal Title

      Chemistry of Materials

      Volume: 31 Issue: 8 Pages: 2713-2722

    • DOI

      10.1021/acs.chemmater.8b03818

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 室温成型可能なLiBH4-Li7La3Zr2O12複合体型固体電解質の作製2022

    • Author(s)
      坂本 陽太郎, 石井 暁大, 及川 格, 高村 仁
    • Organizer
      2022年電気化学秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] CH3NH3+添加Li2B12H12の高圧合成2021

    • Author(s)
      〇河合 理来、石井 暁大、及川 格、高村 仁
    • Organizer
      2021年電気化学秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Multiple-Hydrogen Occupation in Ba-Ti Oxyhydrides2019

    • Author(s)
      Tai Misaki, Itaru Oikawa, Hitoshi Takamura
    • Organizer
      Petitie Workshop on the Defect-Chemical Nature of Solids
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PLD法による高導電性TiO2薄膜の作製とその電気化学的特性2019

    • Author(s)
      山口実奈、及川 格、高村 仁
    • Organizer
      第57回セラミックス基礎科学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 水素化物系イオン伝導体の開発2019

    • Author(s)
      高村 仁
    • Organizer
      中性子産業利用推進協議会 平成30年度電池材料研究会
    • Related Report
      2018 Annual Research Report
    • Invited

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Published: 2018-04-23   Modified: 2024-01-30  

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