YABUUCHI Naoaki

Affiliation

Faculty of Engineering, Division of Materials Science and Chemical Engineering

Job Title

Professor

Research Fields, Keywords

エネルギー, 固体化学, 電池

Mail Address

E-mail address

Related SDGs




Degree 【 display / non-display

  • Doctor of Engineering - Osaka City University

  • Master of Engineering - Osaka City University

Campus Career 【 display / non-display

  • 2018.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate School of Engineering   Department of Materials Science and Engineering   Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Professor  

External Career 【 display / non-display

  • 2014.4
    -
    2018.3

    Tokyo Denki University   Associate Professor  

  • 2011.4
    -
    2013.3

    Tokyo University of Science   Lecturer  

  • 2010.4
    -
    2011.3

    Tokyo University of Science   Assistant Professor  

  • 2006.10
    -
    2008.9

    Massachusetts Institute of Technology   Postdoctoral Associate  

 

Books 【 display / non-display

  • モビリティ用電池の化学

    藪内直明(日本化学会 編集)( Role: Contributor ,  次世代高エネルギー密度正極材料(第Ⅱ部、5章))

    化学同人  ( ISBN:9784759814040

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    Total pages:200   Language:Japanese Book type:Scholarly book

  • ナトリウムイオン電池用層状酸化物の研究開発

    藪内直明( Role: Joint author)

    AndTech 

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    Language:Japanese Book type:Scholarly book

  • 理工系のための一般化学

    鈴木 隆之, 石丸 臣一, 小林 大祐, 保倉 明子, 宮坂 誠, 藪内 直明( Role: Sole author)

    東京電機大学出版局  ( ISBN:9784501631604

    CiNii

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    Language:Japanese Book type:Scholarly book

  • Nanotechnology in Advanced Electrochemical Power Sources

    ( Role: Contributor)

    Pan Stanford Publishing 

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    Language:English Book type:Scholarly book

  • 全固体電池のイオン伝導性向上技術と材料、製造プロセスの開発

    ( Role: Contributor)

    技術情報協会 

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    Responsible for pages:222-229   Language:Japanese Book type:Scholarly book

    本著では全固体電池の研究の進展について取りまとめている。固体電解質、固体活物質など、電池の安全性を大きく向上させることが期待されている固体電池に関して、幅広い内容で執筆されている。
    (担当部分)pp. 222-229 第5節 “異種元素で置換したリチウム・ニオブ・チタン複合酸化物正極材料”の執筆を担当した。酸化物イオンの電荷補償を利用する新しいリチウム電池用正極材料に関する研究成果とその全固体電池の応用の可能性について執筆した。
    (著者)藪内 直明

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Thesis for a degree 【 display / non-display

  • Solid State Chemistry and Electrochemistry of LiCo1/3Ni1/3Mn1/3O2 for Advanced Lithium-Ion Batteries

    2006.3

    Doctoral Thesis   Single Work  

Papers 【 display / non-display

  • Metastable and Nanosized Li1.2Nb0.2V0.6O2 for High-Energy Li-ion Batteries

    QI Ruijie, CAMPÉON Benoît D. L., KONUMA Itsuki, SATO Yoshihiko, KANEDA Yuko, KONDO Masashi, YABUUCH … Show more authors

    Electrochemistry   90 ( 3 )   037005   2022.3  [Reviewed]

    DOI CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:公益社団法人 電気化学会   Joint Work  

    <p>A Li-excess cation-disordered rocksalt oxide, Li<sub>1.2</sub>Nb<sub>0.2</sub>V<sub>0.6</sub>O<sub>2</sub>, with higher theoretical capacity than traditional stoichiometric and layered oxides, is synthesized and tested as positive electrode materials for battery applications. Although Li<sub>1.2</sub>Nb<sub>0.2</sub>V<sub>0.6</sub>O<sub>2</sub> cannot be synthesized by conventional calcination method, a single phase and metastable oxide is successfully synthesized by high-energy mechanical milling. Electrode performance of metastable and nanosized Li<sub>1.2</sub>Nb<sub>0.2</sub>V<sub>0.6</sub>O<sub>2</sub> is significantly improved by heat treatment at 600 °C. Heat treated Li<sub>1.2</sub>Nb<sub>0.2</sub>V<sub>0.6</sub>O<sub>2</sub> with a partial cation ordered layered structure delivers a high reversible specific capacity of 320 mAh g<sup>−1</sup> on the basis of highly reversible two-electron redox of V ions. Moreover, inferior cyclability originating from the dissolution of V ions is successfully improved by using concentrate electrolyte solution, and over 90 % capacity retention is achieved after 50 cycles. This finding opens a new way to design high-capacity metastable Li-excess oxides for advanced Li-ion batteries with higher energy density.</p>

  • Rational material design of Li-excess metal oxides with disordered rock salt structure

    Naoaki Yabuuchi

    Current Opinion in Electrochemistry   34   100978   2022.3  [Reviewed]  [Invited]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Single Work  

  • Magnetic Compton Scattering Study of Li-Rich Battery Materials

    Kosuke Suzuki, Yuji Otsuka, Kazushi Hoshi, Hiroshi Sakurai, Naruki Tsuji, Kentaro Yamamoto, Naoaki … Show more authors

    Condensed Matter   7 ( 1 )   4   2022.3  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Rocksalt and Layered Metal Sulfides for Li Storage Applications: LiMe0.5Ti0.5S2 (Me = Fe2+, Mn2+, and Mg2+)

    Miyuki Shinoda, Hongahally Basappa Rajendra, Naoaki Yabuuchi

    ACS Applied Energy Materials   5 ( 3 )   2642 - 2646   2022.2  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Highly Graphitic Carbon Coating on Li1.25Nb0.25V0.5O2 Derived from a Precursor with a Perylene Core for High-Power Battery Applications

    Ruijie Qi, Itsuki Konuma, Benoît D. L. Campéon, Yuko Kaneda, Masashi Kondo, Naoaki Yabuuchi

    Chemistry of materials   34 ( 4 )   1946 - 1955   2022.2  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

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Review Papers 【 display / non-display

  • Tunining cation migration

    Naoaki Yabuuchi

    Nature Materials   19   372 - 373   2020.2  [Reviewed]  [Invited]

    DOI

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • リチウムイオン電池の発展の歴史と将来展望

    藪内 直明

    PF NEWS   37   9 - 14   2020.2  [Reviewed]  [Invited]

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Single Work  

  • 酸化物イオンの電荷補償を利用する蓄電池用マンガン系高容量正極材料

    ケミカル・エンジニアリング   63 ( 9 )   676 - 682   2018.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)  

  • 酸化物イオンの電荷補償を利用するリチウムイオン電池用高容量正極材料

    固体物理   53 ( 6 )   51 - 58   2018.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)  

  • 特集 層状物質 「ナトリウムイオン電池用クロム・チタン系層状酸化物」

    日本セラミックス協会誌 セラミックス   53 ( 5 )   348 - 390   2018

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)  

Awards 【 display / non-display

  • Featured in the List of 2020 ANNUAL MOST CITED PAPERS, Ranked 1st, Electrochemistry

    2021.2   THE ELECTROCHEMICAL SOCIETY OF JAPAN   Crystal Structures and Electrode Performance of Alpha-NaFeO2 for Rechargeable Sodium Batteries

    Individual or group name of awards:Naoaki YABUUCHI, Hiroaki YOSHIDA, Shinichi KOMABA

  • Featured in the List of CONTINUOUSLY HIGHLY CITED PAPERS, Ranked 5th, Electrochemistry

    2021.2   THE ELECTROCHEMICAL SOCIETY OF JAPAN   Crystal Structures and Electrode Performance of Alpha-NaFeO2 for Rechargeable Sodium Batteries

    Individual or group name of awards:Naoaki YABUUCHI, Hiroaki YOSHIDA, Shinichi KOMABA

  • Global Star Award

    2019.1   The American Ceramics Society, Engineering Ceramic Division  

    Individual or group name of awards:Naoaki YABUUCHI

  • The Periodic Table of Younger Chemists (Niobium)

    2018.12   International Union of Pure and Applied Chemistry (IUPAC)  

    Individual or group name of awards:Naoaki YABUUCHI

  • Clarivate Analytics, Highly Cited Researchers

    2018.11   Clarivate Analytics  

    Individual or group name of awards:Naoaki YABUUCHI

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Grant-in-Aid for Scientific Research 【 display / non-display

  • 格子の膨張収縮を生じない高濃度電荷蓄積を実現する高耐久性電極材料の創製

    Grant number:21K18815  2021.7 - 2023.3

    Grant-in-Aid for Challenging Research (Exploratory)

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    Authorship:Principal investigator  Grant type:Competitive

  • アニオンレドックスの可逆性を支配する原理解明と革新的蓄電池材料設計への応用

    Grant number:21H04698  2021.4 - 2027.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(A)

    Investigator(s):藪内直明

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    Grant type:Competitive

  • 蓄電固体界面の機能開拓と界面新材料開発

    Grant number:19H05816  2019.6 - 2024.3

    科学研究費補助金  Grant-in-Aid for Scientific Research on Innovative Areas

    Investigator(s):藪内直明

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    Grant type:Competitive

  • 蓄電固体デバイスの創成に向けた界面イオンダイナミクスの科学

    Grant number:19H05812  2019.6 - 2024.3

    科学研究費補助金  Grant-in-Aid for Scientific Research on Innovative Areas

    Investigator(s):入山恭寿

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    Grant type:Competitive

  • ナノ構造制御による相変化抑制を実現する革新的インサーション材料の創製 研究課題

    Grant number:19K22229  2019.6 - 2021.3

    科学研究費補助金  Grant-in-Aid for challenging Exploratory Research

    Investigator(s):藪内直明

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    Grant type:Competitive

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Other external funds procured 【 display / non-display

  • 水を基軸とする未踏蓄電機能材料の開拓

    Grant number:JPMJCR21O6  2021.10 - 2026.3

    Japan Science and Technology Agency  CREST

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    Authorship:Coinvestigator(s) 

  • 表面改質を施したリチウム過剰系高容量正極材料の実証試験

    2019.10 - 2020.9

    Japan Science and Technology Agency  A-STEP機能検証フェーズ

    Investigator(s):藪内直明

Presentations 【 display / non-display

  • Nanostructured Li-excess High-capacity Electrode Materials for Li Storage Applications

    Naoaki Yabuuchi  [Invited]

    46th International conference and exposition on advanced ceramics and composites (ICACC2022) 

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    Event date: 2022.1

    Language:English   Presentation type:Oral presentation (invited, special)  

  • Metastable and Nanosized Materials for High-Capacity Positive Electrode Materials

    Naoaki Yabuuchi  [Invited]

    6th International Conference on Advanced Eelectromaterials (ICAE 2021) 

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    Event date: 2021.11

    Language:English   Presentation type:Oral presentation (invited, special)  

  • Nanostructured Electrode Materials for High Energy Li Batteries

    Naoaki Yabuuchi  [Invited]

    International Workshop on Materials Science at Osaka Prefecture Univeristy 

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    Event date: 2021.10

    Language:English   Presentation type:Oral presentation (invited, special)  

  • Materials design of Li-excess rocksalt oxides for Li storage applications

    Naoaki Yabuuchi  [Invited]

    IBA 2021 Annual Meeting 

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    Event date: 2021.10

    Language:English   Presentation type:Oral presentation (invited, special)  

  • Nanostructured High-Capacity Positive Electrode Materials for Li-Ion Batteries

    Naoaki Yabuuchi  [Invited]

    240th ECS Meeting 

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    Event date: 2021.10

    Language:English   Presentation type:Oral presentation (invited, special)  

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Past of Collaboration and Commissioned Research 【 display / non-display

  • Panasonic

    Funded Research offered by Enterprises  

    Project Year: 2021.9  -  2022.3 

  • LG Japan

    Funded Research offered by Enterprises  

    Project Year: 2021.8  -  2022.7 

 

Charge of on-campus class subject 【 display / non-display

  • 2022   Inorganic Chemistry 1

    College of Engineering Science

  • 2022   Energy Storage Engineering

    College of Engineering Science

  • 2022   Introduction to Solid State Physics

    College of Engineering Science

  • 2022   Solid State Chemistry

    Graduate school of Engineering Science

  • 2022   Chemistry, Chemical Engineering and Life Science: Exercise A

    College of Engineering Science

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Committee Memberships 【 display / non-display

  • 総務省消防庁「リチウムイオン蓄電池に係る火災予防上の安全対策に関する検討会」

    2022.3  委員

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    Committee type:Government 

  • 電気化学会普及委員会

    2022.3 - 2024.2  委員長

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    Committee type:Academic society 

  • JST 戦略的創造研究推進事業 個人型研究 (さきがけ) 研究領域

    2022.2  領域アドバイザー

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    Committee type:Government 

  • Symposium Organizer of ICACC 2022

    2022.1  Symposium Organizer of Session 6

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    Committee type:Academic society 

  • Materials Research Meeting (MRM) 2021

    2021.12  Lead organizer for Sympsium E-1

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    Committee type:Academic society 

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Social Contribution(Extension lecture) 【 display / non-display

  • 有機分子・バイオエレクトロニクス分科会講習会「SDGsに向けたクリーンエネルギー有機デバイスの最前線」

    Role(s): Lecturer

    応用物理学会  2022.3

  • 高安全、長寿命、高エネルギー密度の水系リチウムイオン電池の開発に成功

    Role(s): Official expert

    国立大学法人 横浜国立大学  横浜国立大学プレスリリース  2021.11

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    Audience: University students, Graduate students, Teachers, Researchers, Scientific organization, Company, Media, Other

    Type:Newspaper, magazine

    ▪横浜国立大学の藪内教授らの研究グループは、高い安全性と従来リチウムイオン電池と同等以上の長寿命を実現した。
    ▪プレスリリース(2021年11月23日掲載)の他、次の新聞等にも掲載された。
    (1)2021年11月23日 朝日新聞 記事
    (2)2021年11月25日 電波新聞
    (3)2021年11月26日 化学工業日報
    (4)2021年12月10日 科学新聞
    (5)2021年12月10日 日経産業新聞

  • 2021年度第2回電池製造技術分科会

    Role(s): Lecturer

    一般社団法人日本粉体工業技術会  2021.11

  • Niobium Technology for Clean Energy

    Role(s): Lecturer

    The Embassy of Brazil in Tokyo, CBMM and Sojitz Corporation  2021.11

  • 令和3年度第3回 iMATERIA 研究会「中性子回折で解明するセラミックスの機能」

    Role(s): Lecturer

    茨城県中性子利用研究会  2021.10

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Media Coverage 【 display / non-display

  • 安全・長寿命で高エネ密度

    科学新聞  2021.12

  • 安全性高いリチウムイオン電池

    日経産業新聞  2021.12

  • リチウムイオン電池 材料は水

    朝日新聞  2021.11

  • 高安全・長寿命の水系LiB

    化学工業日報  2021.11

  • 安全で長寿命・高エネルギー密度の電池

    電波新聞  2021.11

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