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Materials development of complex hydride solid electrolyte based on clarification of lithium ion conduction mechanism

Research Project

Project/Area Number 17H06519
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

Kim Sangryun  東北大学, 金属材料研究所, 助教 (20801442)

Project Period (FY) 2017-08-25 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords全固体電池 / 固体電解質 / 超イオン伝導体 / 錯体水素化物 / 固体電解質/電極界面 / 水素化物 / リチウム電極 / イオン伝導 / 二次電池
Outline of Final Research Achievements

Complex hydrides have received particular attention as a new class of solid electrolytes owing to their high deformability and outstanding chemical/electrochemical stability against the lithium metal anode. However, the major drawback of complex hydrides is their low ionic conductivity (~10-5 Scm-1 at room temperature), thus requiring high-temperature (~100°C) operation for stable battery performance. Therefore, the development of complex hydride solid electrolytes that exhibit high ionic conductivity at room temperature will be a revolutionary breakthrough for all-solid-state batteries.
In this work, we develop a complex hydride lithium superionic conductor from a solid solution of two complex hydrides, namely Li(CB9H10) and Li(CB11H12). The partial replacement of (CB9H10)- with (CB11H12)- stabilizes the disordered high temperature (high-T) phase of Li(CB9H10) at lower temperatures, leading to a lithium superionic conductivity of 6.7 × 10-3 S cm-1 at 25 °C.

Academic Significance and Societal Importance of the Research Achievements

以下の特徴を持つ本研究は、錯体水素化物の特性改善だけでなく、新しい材料設計指針と新しい研究領域の開拓、という観点でも極めて将来性に溢れた研究として位置付けられる。
これまで錯体水素化物において全く報告例のない“錯イオンの分子レベルでの共存化”による新規材料物性の創出という、固体電解質材料の新たな指導原理を提案している。また、固体電解質研究の主流となっている酸化物や硫化物とは異なる物性を実現し、高い潜在性を持ちながらも蓄電池材料としての認識が限定的であった錯体水素化物の学術的・社会的価値を格段に高めるとともに、固体電解質としての材料科学・材料学問において新たな研究領域を切り拓くものと期待される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • Research Products

    (18 results)

All 2019 2018 2017 Other

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (2 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Full-cell hydride-based solid-state Li batteries for energy storage2019

    • Author(s)
      Latroche Michel、Blanchard Didier、Cuevas Fermin、El Kharbachi Abdelouahab、Hauback Bjorn C.、Jensen Torben R.、de Jongh Petra E.、Kim Sangryun、Nazer Nazia S.、Ngene Peter、Orimo Shin-ichi、Ravnsbaek Dorthe B.、Yartys Volodymyr A.
    • Journal Title

      International Journal of Hydrogen Energy

      Volume: 44 Issue: 15 Pages: 7875-7887

    • DOI

      10.1016/j.ijhydene.2018.12.200

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Lithium ion conductivity of complex hydrides incorporating multiple closo-type complex anions2019

    • Author(s)
      N. Toyama, S. Kim, H. Oguchi, T. Sato, S. Takagi, M. Tazawa, G. Nogami, S. Orimo
    • Journal Title

      Journal of Energy Chemistry

      Volume: 38 Pages: 84-87

    • DOI

      10.1016/j.jechem.2019.01.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A complex hydride lithium superionic conductor for high-energy-density all-solid-state lithium metal batteries2019

    • Author(s)
      Kim Sangryun、Oguchi Hiroyuki、Toyama Naoki、Sato Toyoto、Takagi Shigeyuki、Otomo Toshiya、Arunkumar Dorai、Kuwata Naoaki、Kawamura Junichi、Orimo Shin-ichi
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 1081-1081

    • DOI

      10.1038/s41467-019-09061-9

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lithium ionic conduction in composites of Li(BH 4 ) 0.75 I 0.25 and amorphous 0.75Li 2 S・0.25P 2 S 5 for battery applications2018

    • Author(s)
      El kharbachi Abdelouahab、Hu Yang、Yoshida Koji、Vajeeston Ponniah、Kim Sangryun、Sorby Magnus H.、Orimo Shin-ichi、Fjellvag Helmer、Hauback Bjorn C.
    • Journal Title

      Electrochimica Acta

      Volume: 278 Pages: 332-339

    • DOI

      10.1016/j.electacta.2018.05.041

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fast Lithium-Ion Conduction in Atom-Deficient closo-Type Complex Hydride Solid Electrolytes2018

    • Author(s)
      Kim Sangryun、Toyama Naoki、Oguchi Hiroyuki、Sato Toyoto、Takagi Shigeyuki、Ikeshoji Tamio、Orimo Shin-ichi
    • Journal Title

      Chemistry of Materials

      Volume: 30 Issue: 2 Pages: 386-391

    • DOI

      10.1021/acs.chemmater.7b03986

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Origin of unusual spinel-to-layered phase transformation by crystal water2018

    • Author(s)
      Yang Eunjeong、Kim Heejin、Kim Sangryun、Kim In、Kim Jaehoon、Ji Hyunjun、Choi Jang Wook、Jung Yousung
    • Journal Title

      Chemical Science

      Volume: 9 Issue: 2 Pages: 433-438

    • DOI

      10.1039/c7sc04114d

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nanoscale Zirconium-Abundant Surface Layers on Lithium- and Manganese-Rich Layered Oxides for High-Rate Lithium-Ion Batteries2017

    • Author(s)
      Ahn Juhyeon、Kim Jong Hak、Cho Byung Won、Chung Kyung Yoon、Kim Sangryun、Choi Jang Wook、Oh Si Hyoung
    • Journal Title

      Nano Letters

      Volume: 17 Issue: 12 Pages: 7869-7877

    • DOI

      10.1021/acs.nanolett.7b04158

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Closo-type complex hydrides with cage-type complex anions for all solid-state battery electrolytes2018

    • Author(s)
      Sangryun Kim, Naoki Toyama, Hiroyuki Oguchi, Masahiro Shimad, Masaru Tazawa, Genki Nogami, Shin-ichi Orimo
    • Organizer
      The 19th International Meeting on Lithium Batteries
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Complex hydride solid electrolytes for all solid-state batteries2018

    • Author(s)
      Sangryun Kim
    • Organizer
      LiMBAT workshop on Metal hydrides - energy carriers in modern all-solid-state Li-ion batteries
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 錯体水素化物超リチウムイオン伝導体の開発2018

    • Author(s)
      金相侖,大口裕之,外山直樹,折茂慎一
    • Organizer
      日本金属学会2017年秋季(第163回)講演大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] クロソ系錯体水素化物を用いた 超リチウムイオン伝導体の開発2018

    • Author(s)
      金相侖,大口裕之,外山直樹,野上玄器,折茂慎一
    • Organizer
      第59回電池討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 錯体水素化物超リチウムイオン伝導体の 合成と電気化学特性2018

    • Author(s)
      金相侖,大口裕之,外山直樹,野口敬太,野上玄器,折茂慎一
    • Organizer
      電気化学会第86回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 水素化物系固体電解質を用いた 全固体リチウムイオン電池の研究開発 - クロソ系錯体水素化物のB-Hクラスターの物質設計 -2018

    • Author(s)
      金相侖,外山直樹,大口裕之,原田健太郎, 島田昌宏,野上玄器,折茂慎一
    • Organizer
      電気化学会第85回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] クラスターアニオン型錯体水素化物のリチウム欠損とイオン伝導特性2017

    • Author(s)
      金相侖,外山直樹,大口裕之,佐藤豊人,髙木成幸,池庄司民夫,折茂慎一
    • Organizer
      第58回電池討論会
    • Related Report
      2017 Annual Research Report
  • [Remarks] 新たなリチウム超イオン伝導材料を開発 ー 全固体電池の高エネルギー密度化を一気に加速 ー

    • URL

      https://www.tohoku.ac.jp/japanese/2019/03/press-20190305-01-lithium-web.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] Highest energy density all-solid-state batteries

    • URL

      https://www.tohoku.ac.jp/en/press/all_solid_state_batteries.html

    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] LiCB9H10の高温相を含むイオン伝導体およびその製造方法、並びに該イオン伝導体を含む全固体電池用固体電解質2018

    • Inventor(s)
      金相侖、折茂慎一、野口敬太、野上玄器
    • Industrial Property Rights Holder
      金相侖、折茂慎一、野口敬太、野上玄器
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-156211
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] Li2B12H12およびLiBH4を含むイオン伝導体およびその製造方法、並びに該イオン伝導体を含む全固体電池用固体電解質2018

    • Inventor(s)
      野上玄器、島田昌宏、外山直樹、金相侖、折茂慎一
    • Industrial Property Rights Holder
      野上玄器、島田昌宏、外山直樹、金相侖、折茂慎一
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-034929
    • Filing Date
      2018
    • Related Report
      2017 Annual Research Report

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Published: 2017-08-25   Modified: 2020-03-30  

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