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Affiliation |
Faculty of Engineering, Division of Materials Science and Chemical Engineering |
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Job Title |
Professor |
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Research Fields, Keywords |
エネルギー, 固体化学, 電池 |
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Mail Address |
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Related SDGs |
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YABUUCHI Naoaki
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Degree 【 display / non-display 】
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Doctor of Engineering - Osaka City University
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Master of Engineering - Osaka City University
Campus Career 【 display / non-display 】
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2018.4
Duty Yokohama National UniversityFaculty of Engineering Division of Materials Science and Chemical Engineering Professor
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2023.4
Concurrently Yokohama National UniversityInstitute for Multidisciplinary Sciences Professor
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2020.10
Concurrently Yokohama National UniversityInstitute of Advanced Sciences Professor
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2018.4
Concurrently Yokohama National UniversityGraduate School of Engineering Department of Materials Science and Engineering Professor
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2018.4
Concurrently Yokohama National UniversityCollege of Engineering Science Department of Chemistry, Chemical Engineering and Life Science Professor
External Career 【 display / non-display 】
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2014.4-2018.3
Tokyo Denki University Associate Professor
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2011.4-2013.3
Tokyo University of Science Lecturer
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2010.4-2011.3
Tokyo University of Science Assistant Professor
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2006.10-2008.9
Massachusetts Institute of Technology Postdoctoral Associate
Books 【 display / non-display 】
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Interface ionics : for all-solid-state batteries and solid state ionics devices
Iriyama Yasutoshi, Amezawa Koji, Tateyama Yoshitaka, Yabuuchi Naoaki（ Role： Joint author）
Springer （ ISBN:9789819760381 ）
Language：English Book type：Scholarly book
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車載用リチウムイオン電池の開発と市場 2024
藪内直明（ Role： Joint author , 次世代リチウムイオン電池用正極材料開発）
シーエムシー出版 （ ISBN:978-4-7813-1755-7 ） [Reviewed]
Responsible for pages：10 Language：Japanese Book type：Scholarly book
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ポストリチウムイオン二次電池開発 部材開発から解析・性能診断技術まで
藪内 直明（ Role： Contributor , 「多電子反応を利用する高容量Li過剰型カチオン不規則配列岩塩型正極材料」）
エヌ・ティー・エス （ ISBN:978-4-86043-836-4 ）
Total pages：492 Responsible for pages：75-82 Language：Japanese Book type：Scholarly book
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次世代二次電池の開発動向
藪内 直明（ Role： Contributor , 第II編第1章「リチウム過剰型正極材料の研究開発」）
シーエムシー出版 （ ISBN:978-4-7813-1730-4 ）
Total pages：247 Responsible for pages：47-55 Language：Japanese Book type：Scholarly book
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科学
藪内直明（ Role： Joint author , 結晶構造とイオン拡散－電極材料および固体電解質材料）
岩波書店
Responsible for pages：6 Language：Japanese Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
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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 】
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Design Strategy for Sheet-Type Composite Electrodes in All-Solid-State Batteries Operable Under Minimal Stack Pressure Enabled by Cold Isostatic Pressing
Teppei Ohno, Yosuke Ugata, and Naoaki Yabuuchi
ChemElectroChem 2026.3 [Reviewed] [Invited]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Ohno, T; Ugata, Y; Yabuuchi, N
JOURNAL OF MATERIALS CHEMISTRY A 14 ( 1 ) 385 - 393 2026.1 [Reviewed]
Language：The in addition, foreign language Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry Joint Work
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Sasadaira, T; Tanibata, N; Takeda, H; Yabuuchi, N; Nakayama, M
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS-METHODS 6 ( 1 ) 2025.12 [Reviewed]
Language：The in addition, foreign language Publishing type：Research paper (scientific journal) Joint Work
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Direct Visualization of Metastable Charged States in Positive Electrode Materials by Cryo-STEM
Fujimura, H; Ugata, Y; Xinrui, Z; Miyazaki, Y; Yabuuchi, N
ACS MATERIALS LETTERS 7 ( 10 ) 3420 - 3426 2025.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Designing Functional Insertion Materials for Practical Battery Applications
YABUUCHI Naoaki
Electrochemistry advpub ( 0 ) 101003 - 101003 2025.10 [Reviewed]
DOI Web of Science CiNii Research
Language：English Publishing type：Research paper (scientific journal) Publisher：公益社団法人 電気化学会 Single Work
<p>Energy storage technology is indispensable, and Li-ion batteries are currently widely used as power sources for portable electronics and automobile applications. The Li-ion battery market for electric vehicles has expanded rapidly over the past decade. High-energy Ni-rich electrode materials, such as LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub>, and cost-effective Fe-based materials, such as LiFePO<sub>4</sub>, are commonly employed as positive electrode materials for electric vehicles. In this article, recent research progress and design strategies for positive electrode materials are summarized. Defect engineering has proven effective in enhancing electrode reversibility, enabling the development of high-performance, pure Ni-based layered materials. Furthermore, a Co-/Ni-free Mn-based Li insertion material with a domain structure and optimum surface area has been successfully synthesized. The electrode reversibility of cation-disordered rocksalt oxides containing V and Ti ions is also significantly improved through the structural defect enrichment and increased surface area. Highly concentrated electrolyte solutions, which possess high oxidation tolerance and reduced solubility for transition metal ions, further contribute to enhanced reversibility of these electrode materials. Similarly, the electrode reversibility of Mn-based Na insertion materials is greatly improved by using highly concentrated electrolyte solutions, due to the suppression of Mn dissolution. The practical feasibility of these Li/Na insertion materials is also discussed based on these findings.</p>
Review Papers 【 display / non-display 】
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無体積変化の高容量正極材料開発と全固体電池応用
藪内 直明, 廣井 慧, 尾原 幸治, 山川 幸雄, 幸 琢寛
セラミックス 2026.2 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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Near-dimensionally invariable high-capacity positive electrode material
N. Yabuuchi, S. Hiroi, and K. Ohara
SPring-8/SACLA Research Frontiers 2023 2024.8 [Reviewed] [Invited]
Language：English Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution) Single Work
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コバルトフリーニッケル系正極材料の開発動向と高エネルギー密度化
藪内直明
車載テクロノジー 2024.7
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution) Single Work
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リチウム過剰型マンガン系酸フッ化物材料の開発とその電気化学特性
藪内直明
Material Stage 2024.6
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Single Work
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リチウムイオン電池の基本原理と火災リスク要因
藪内直明
火災 2023.10 [Reviewed] [Invited]
Language：English Publishing type：Rapid communication, short report, research note, etc. (scientific journal) Single Work
Awards 【 display / non-display 】
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Mid-Career Researcher Award
2026.3 The International Society for Solid State Ionics (ISSI)
Individual or group name of awards：Naoaki Yabuuchi
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ACerS Global Ambassador
2026.2 The American Ceramic Society
Individual or group name of awards：Naoaki Yabuuchi
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2025年電気化学会学術賞
2024.12 電気化学会
Individual or group name of awards：藪内直明
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Selected as a fellow of the Royal Society of Chemistry (from the Royal Society of Chemistry)
2023.6 the Royal Society of Chemistry
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令和5年度 科学技術分野の文部科学大臣表彰 科学技術賞 (研究部門)
2023.4 文部科学省 先駆的インサーション材料開発と蓄電池への応用に関する研究
Individual or group name of awards：藪内直明
Grant-in-Aid for Scientific Research 【 display / non-display 】
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疑三次元構造に立脚したインサーション材料革新
Grant number：25K22293 2025.4 - 2027.3
Grant-in-Aid for Challenging Research (Exploratory)
Authorship：Principal investigator
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イオン渋滞学に基づく新物質創製と機能開拓 計画研究
Grant number：24H02204 2024.1 - 2029.3
Grant-in-Aid for Scientific Research on Innovative Areas
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チオン・アニオン配列低秩序化の特異性を利用した蓄電池材料の革新
Grant number：23K17954 2023.6 - 2025.3
Grant-in-Aid for Challenging Research (Exploratory)
Authorship：Principal investigator Grant type：Competitive
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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)
Authorship：Principal investigator Grant type：Competitive
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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
Grant type：Competitive
Other external funds procured 【 display / non-display 】
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ASPIRE 先端国際共同研究推進事業
2024.2 - 2029.3
Japan Science and Technology Agency
Authorship：Coinvestigator(s)
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GteX（革新的GX技術創出事業）
2023.10 - 2028.3
Japan Science and Technology Agency
Authorship：Coinvestigator(s)
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次世代全固体蓄電池材料の評価・基盤技術開発／次世代全固体ＬＩＢ基盤技術開発
2023.4 - 2028.3
Ministry of Economy, Trade and Industry
Authorship：Coinvestigator(s)
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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
Authorship：Coinvestigator(s)
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再生可能エネルギー最大導入に向けた電気化学材料研究拠点
2021.4 - 2026.3
Ministry of Education, Culture, Sports, Science and Technology
Authorship：Coinvestigator(s)
Presentations 【 display / non-display 】
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Designing advanced lithium insertion materials for practical Li-ion batteries
N. Yabuuchi and Y. Ugata [Invited]
50th International Conference and Expo on Advanced Ceramics and Composites (ICACC2026)
Event date： 2026.1
Language：English Presentation type：Oral presentation (general)
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Defect-engineered Lithium Insertion Materials for Practical Li-ion Battery Applications
Naoaki Yabuuchi [Invited]
MRM2025
Event date： 2025.12
Language：English Presentation type：Oral presentation (invited, special)
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Durable layered oxides for high-power Na-ion batteries
N. Yabuuchi and Y. Ugata [Invited]
The 10th International Conference on Sodium Batteries (ICNaB) 2025
Event date： 2025.11
Language：English Presentation type：Oral presentation (invited, special)
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Nanostructured Insertion Materials for High-Energy Li-Ion Batteries
Naoaki Yabuuchi [Invited]
The International Battery Materials Association Annual Meeting 2025
Event date： 2025.11
Language：English Presentation type：Oral presentation (invited, special)
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Na-ion Batteries with Durable and Cost-effective Layered Materials
N. Yabuuchi and Y. Ugata [Invited]
76th Annual Meeting of the International Society of Electrochemistry
Event date： 2025.9
Language：English Presentation type：Oral presentation (keynote)
Past of Collaboration and Commissioned Research 【 display / non-display 】
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Panasonic
Funded Research offered by Enterprises
Project Year： 2021.9 - 2022.3
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LG Japan
Funded Research offered by Enterprises
Project Year： 2021.8 - 2022.7
Charge of on-campus class subject 【 display / non-display 】
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2026 Introduction to Solid State Physics
College of Engineering Science
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2026 Inorganic Chemistry 1
College of Engineering Science
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2026 Energy Storage Engineering
College of Engineering Science
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2026 Solid State Chemistry
Graduate school of Engineering Science
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2026 Exercise in Energy and Sustainable Chemistry BS
Graduate school of Engineering Science
Committee Memberships 【 display / non-display 】
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JST インド若手研究人材招へい事業推進委員会」分科会、「日ASEAN 科学技術・イノベーション協働連携事業若手人材交流推進委員会」分科会
2025.4 委員
Committee type：Academic society
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JST 大学発新産業創出基金事業「ディープテック・スタートアップ国際展開プログラム(D Global)、「早暁プログラムJおよび研究成果展開事業大学発新産業倉1出プログラム (START)プロジェクト推進型「SBIRフェーズl支援」
2025.4 外部専門家
Committee type：Academic society
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ICACC 2026
2025.4 - 2026.1 Symposium Organizer
Committee type：Academic society
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電気化学会 １００周年記念事業準備委員会
2025.3 委員
Committee type：Academic society
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独立行政法人日本学術振興会 国際事業委員会
2025.3 - 2027.2 書面評価委員
Committee type：Academic society
Social Contribution(Extension lecture) 【 display / non-display 】
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電気化学会 セミナーD “最先端電池技術 2024
Role(s)： Lecturer, Logistic support
2024.2
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第63回 電気化学セミナー “蓄電池の未来 ー学術・技術・人材育成の展望ー
Role(s)： Lecturer
2023.10
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構造物性研究会・コヒーレント構造科学研究会 合同研究会
Role(s)： Lecturer
2023.9
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Interface Ionics for All-Solid-State Batteries
Role(s)： Lecturer
Interface Ionics for All-Solid-State Batteries 2023.6
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2022年度立命館大学SRセンター –研究成果報告会–
Role(s)： Lecturer
2023.6
Media Coverage 【 display / non-display 】
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Cobalt-free electrodes achieved with nickel ions
2024.3
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高エネ密度でコバルトフリーのニッケル系電池材料＝横浜国大など
MIT Technology Review Japan 2024.2
Author：Other
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高エネ密度・長寿命のコバルトニッケルフリー電池材料
MIT Technology Review Japan 2023.7
Author：Other
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全固体電池、トヨタと共同研究の横浜国立大学教授に聞く
日経新聞社 2023.7
Author：Other