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Topological Defect Engineering on Carbon Electrode for Advanced Batteries

Research Project

Project/Area Number 22K14757
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionTohoku University

Principal Investigator

YU WEI  東北大学, 材料科学高等研究所, 助教 (10900904)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsTopological Defect / Carbon Materials / Graphene Mesosponge / Lithium-Oxygen Battery / Carbon Material / Lithium-Gas Battery
Outline of Research at the Start

By using three-dimensional single-layer graphene frameworks equipped with designed topological defects, the catalysis of topological defects, which are non-hexagonal carbon rings, is investigated through experiments and theoretical calculations to improve the cycle stability of Li-gas batteries.

Outline of Final Research Achievements

In this research, we investigated the catalytic effect of topological defects in carbon cathodes on Li-O2 batteries for the first time. In brief, topological-defect-rich and edge-site-free graphene mesosponge (GMS) was synthesized by chemical vapor deposition. Compared with conventional carbons, the GMS cathode shows larger capacity and better cycling stability in Li-O2 batteries. In situ isotopic electrochemical mass spectrometry and theoretical calculations reveal the unique catalysis of topological defects in the formation of easily-decomposable amorphous Li2O2, contributing to a low charge plateau around 3.6 V (vs. Li/Li+). In addition, GMS with abundant topological defects and a large surface area proved to be a good substrate for uniform loading of solid catalyst. Finally, the free-standing GMS-sheet with hierarchical pores shows an ultra-high energy density of 793 Wh kg-1 and excellent cycling stability (> 260 cycles) at a practically high current density of 0.4 mA cm-2.

Academic Significance and Societal Importance of the Research Achievements

GMSの合成と活用の成功により,これまで報告されていなかったエッジサイトの影響がない,実際のLi-O2電池のトポロジカル欠陥の触媒能についての知見が得られた.我々はRuを担持したGMSによってトポロジカル欠陥と固体触媒の逐次反応作用を提案した.GMSシートが示す優れた電池性能から,炭素正極の構造を適切に設計することでLi-O2電池の主要な問題のほとんどを解消できると示された.Li-O2電池の問題点であったエネルギー密度とサイクル特性は適切に設計された炭素電極により解消された.この結果から,電気自動車用の高いエネルギー密度をもったLi-O2電池の実用化が促進されると期待される.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022

All Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 4 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 2 results)

  • [Journal Article] Hierarchically Porous and Minimally Stacked Graphene Cathodes for High‐Performance Lithium-Oxygen Batteries2024

    • Author(s)
      Yu Wei、Shen Zhaohan、Yoshii Takeharu、Iwamura Shinichiroh、Ono Manai、Matsuda Shoichi、Aoki Makoto、Kondo Toshihiro、Mukai Shin R.、Nakanishi Shuji、Nishihara Hirotomo
    • Journal Title

      Advanced Energy Materials

      Volume: 14 Issue: 2 Pages: 2303055-2303055

    • DOI

      10.1002/aenm.202303055

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prominent Structural Dependence of Quantum Capacitance Unraveled by Nitrogen‐Doped Graphene Mesosponge2023

    • Author(s)
      Tang Rui、Aziz Alex、Yu Wei、Pan Zheng‐Ze、Nishikawa Ginga、Yoshii Takeharu、Nomura Keita、Taylor Erin E.、Stadie Nicholas P.、Inoue Kazutoshi、Kotani Motoko、Kyotani Takashi、Nishihara Hirotomo
    • Journal Title

      Small

      Volume: - Issue: 18 Pages: 202308066-202308066

    • DOI

      10.1002/smll.202308066

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cathode Chemistries of Lithium-Oxygen Batteries in Nanoconfined Space2023

    • Author(s)
      Liu Hongyu、Shen Zhaohan、Pan Zheng-Ze、Yu Wei、Nishihara Hirotomo
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 15 Issue: 34 Pages: 40397-40408

    • DOI

      10.1021/acsami.3c05944

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sequential Catalysis of Defected-Carbon and Solid Catalyst in Li?O<sub>2</sub> Batteries2023

    • Author(s)
      Shen Zhaohan、Yu Wei、Aziz Alex、Chida Koki、Yoshii Takeharu、Nishihara Hirotomo
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 127 Issue: 13 Pages: 6239-6247

    • DOI

      10.1021/acs.jpcc.3c01042

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Edge‐Site‐Free and Topological‐Defect‐Rich Carbon Cathode for High‐Performance Lithium‐Oxygen Batteries2023

    • Author(s)
      Yu Wei、Yoshii Takeharu、Aziz Alex、Tang Rui、Pan Zheng‐Ze、Inoue Kazutoshi、Kotani Motoko、Tanaka Hideki、Scholtzov? Eva、Tunega Daniel、Nishina Yuta、Nishioka Kiho、Nakanishi Shuji、Zhou Yi、Terasaki Osamu、Nishihara Hirotomo
    • Journal Title

      Advanced Science

      Volume: - Issue: 16 Pages: 2300268-2300268

    • DOI

      10.1002/advs.202300268

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Free-standing hierarchical porous carbon cathode for practical Li-O2 batteries2023

    • Author(s)
      Wei Yu, Takeharu Yoshii, Shoichi Matsuda, Makoto Aoki, Toshihiro Kondo, Hirotomo Nishihara
    • Organizer
      Carbon2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Insight into carbon edge sites in lithium-oxygen batteries2023

    • Author(s)
      Wei Yu, Alex Aziz, Takeharu Yoshii, Hirotomo Nishihara
    • Organizer
      Faraday discussion
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elucidation of carbon corrosion in lithium-oxygen batteries2023

    • Author(s)
      Wei Yu, Alex Aziz, Takeharu Yoshii, Hirotomo Nishihara
    • Organizer
      7th CBNM
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The culprit of carbon corrosion in Li-O2 batteries: H-containing edge sites2023

    • Author(s)
      Wei Yu, Takeharu Yoshii, Alex Aziz, Hirotomo Nishihara
    • Organizer
      第50回炭素材料学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] GO/mesoporous Carbon Composite Membrane for Durable Cathode of Li-O2 Batteries2022

    • Author(s)
      Wei Yu, Takeharu Yoshii, Rui Tang, Zheng-Ze Pan, Hirotomo Nishihara
    • Organizer
      第17回 酸化グラフェン学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Influence of Carbon Cathode Edge Sites on Li-O2 Batteries2022

    • Author(s)
      Wei Yu, Takeharu Yoshii, Rui Tang, Zheng-Ze Pan, Hirotomo Nishihara
    • Organizer
      The 2022 World Conference on Carbon
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] In Pursuit of High-Performance Carbon Cathodes for Li-O2 Batteries2022

    • Author(s)
      Wei Yu, Takeharu Yoshii, Alex Aziz, Rui Tang, Zheng-Ze Pan, Hirotomo Nishihara
    • Organizer
      第49回炭素材料学会年会
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] リチウム空気電池および多孔質炭素膜の製造方法2022

    • Inventor(s)
      西原洋知、YU WEI
    • Industrial Property Rights Holder
      西原洋知、YU WEI
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] リチウム空気電池用正極およびリチウム空気電池2022

    • Inventor(s)
      西原洋知、YU WEI
    • Industrial Property Rights Holder
      西原洋知、YU WEI
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report
    • Overseas

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Published: 2022-04-19   Modified: 2025-01-30  

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