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Cathode Materials Design for High-Performance Li-Mg Dual-cation Batteries

Research Project

Project/Area Number 20K22461
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0401:Materials engineering, chemical engineering, and related fields
Research InstitutionTohoku University

Principal Investigator

Li Hongyi  東北大学, 金属材料研究所, 特任助教 (80876706)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsインターカレーション型正極 / 協奏的相互作用 / デュアルカチオン / 金属負極 / 溶媒和構造 / 蓄電池 / 蓄電池材料 / スピネル酸化物 / 第一原理計算
Outline of Research at the Start

次世代蓄電池を実現するには,既存の枠にとらわれない新たなアプローチが不可欠である.Li-Mgデュアルカチオン電池は,2種類のキャリアカチオンを同時に電極反応に参加させることによって,従来の単一キャリア系では解決し難い課題に対して打開策を提示した.本研究課題では,Li-Mgデュアルカチオン電池の実用化に向け,正極材料候補を熱力学・速度論の両面から探査し,高性能を有する正極材料の設計指針を確立することを目指す.本研究は,応用面だけでなく,遷移金属化合物の組織制御学やイオン伝導を扱う固体イオニクスにも新たな知見をもたらし,学術の発展に貢献することが期待できる.

Outline of Final Research Achievements

Dual-cation batteries, in which two carriers (e.g. lithium and magnesium) are used together, have the potential to solve the inherent problems of conventional batteries that use a single carrier. In this study, we investigated the composition range in which two carriers can coexist in a cathode and examined the performance of the electrode materials. In particular, we used manganese dioxide polymorphs, which have various typical crystal structures, as model cathodes and considered suitable structures for the coexistence of carriers. In parallel with the study of the cathode, we also investigated the electrodeposition and dissolution behavior of metal anodes in the dual-cation electrolyte and found that the deposition morphology of the metal anodes can be controlled by the solvation structure modification in the dual-cation electrolyte.

Academic Significance and Societal Importance of the Research Achievements

エネルギー・環境問題を解決するため,再生可能エネルギーの導入拡大と自動車の電動化が推進されている.蓄電池技術はその中核の1つであり,高性能化と低コスト化が期待されている.現行のリチウムイオン電池はすでに理論上の限界を迎えており,新規蓄電池技術の開発には新しい設計方針が必要である.本研究は2つのキャリアを併用する蓄電池系の構築に向け,反応過程の基礎的理解を深め,イオン伝導現象や,酸化物の相平衡や構造制御や,金属負極の形態制御に関して知見を得た.これらの知識は新規蓄電池の実現につながることを期待する.

Report

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

    (7 results)

All 2022 2021 2020

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

  • [Journal Article] Influences of enhanced entropy in layered rocksalt oxide cathodes for lithium-ion batteries2022

    • Author(s)
      Tomoya Kawaguchi, Xiao Bian, Takuya Hatakeyama, Hongyi Li, Tetsu Ichitsubo
    • Journal Title

      ACS Applied Energy Materials

      Volume: TBD Issue: 4 Pages: 4369-4381

    • DOI

      10.1021/acsaem.1c03968

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dendrite-free alkali-metal electrodeposition from contact-ion-pair state induced by mixing alkaline earth cation2022

    • Author(s)
      Li Hongyi、Murayama Masaki、Ichitsubo Tetsu
    • Journal Title

      Cell Reports Physical Science

      Volume: 3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Accelerated Kinetics Revealing Metastable Pathways of Magnesiation-Induced Transformations in MnO2 Polymorphs2021

    • Author(s)
      Hatakeyama Takuya、Li Hongyi、Okamoto Norihiko L.、Shimokawa Kohei、Kawaguchi Tomoya、Tanimura Hiroshi、Imashuku Susumu、Fichtner Maximilian、Ichitsubo Tetsu
    • Journal Title

      Chemistry of Materials

      Volume: 33 Issue: 17 Pages: 6983-6996

    • DOI

      10.1021/acs.chemmater.1c02011

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fundamental Study towards Development of Energy Storage Devices Utilizing Multivalent Cations2020

    • Author(s)
      Li Hongyi、Shimokawa Kohei、Okamoto Norihiko L.、Ichitsubo Tetsu
    • Journal Title

      Materia Japan

      Volume: 59 Issue: 8 Pages: 413-421

    • DOI

      10.2320/materia.59.413

    • NAID

      130007883172

    • ISSN
      1340-2625, 1884-5843
    • Year and Date
      2020-08-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] リチウム電池用集電体一体型アルミ箔負極の実現2020

    • Author(s)
      李弘毅,岡本範彦,市坪哲
    • Organizer
      第139回金研講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] デュアルカチオン化によるNa金属負極のデンドライト成長の抑制2020

    • Author(s)
      村山将来,李弘毅,市坪哲
    • Organizer
      第139回金研講演会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] アルカリ金属二次電池用電解液およびアルカリ金属二次電池2021

    • Inventor(s)
      市坪哲、李弘毅、村山将来
    • Industrial Property Rights Holder
      市坪哲、李弘毅、村山将来
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report
    • Overseas

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Published: 2020-09-29   Modified: 2023-03-23  

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