Kawaguchi Tomoya 河口智也

… Alternative Names

KAWAGUCHI Tomoya 河口智也

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Researcher Number	00768103
Other IDs	https://orcid.org/0000-0002-7600-4847
Affiliation (Current)	2024: 東北大学, 金属材料研究所, 助教
Affiliation (based on the past Project Information) *help	2018 – 2024: 東北大学, 金属材料研究所, 助教 2016: 京都大学, 産官学連携本部, 助教
Review Section/Research Field	Principal Investigator Basic Section 26040:Structural materials and functional materials-related / Medium-sized Section 26:Materials engineering and related fields Except Principal Investigator Medium-sized Section 26:Materials engineering and related fields / Broad Section D / Nanomaterials engineering
Keywords	Principal Investigator 二次電池 / 酸化物正極材料 / ハイエントロピー酸化物 / 蓄電池 / 微細組織構造 / 正極材料 / 多価イオン / ハイエントロピー化 / 先進的X線解析 / X線解析 … More / 微細組織 / 酸化物正極 / ハイエントロピー / 構造解析 / 弾性ひずみ / 組織構造 / 弾性歪 / リチウムイオン電池 … More Except Principal Investigator 多価イオン / 蓄電池 / デュアルキャリア / デントライト / 合金負極 / 金属負極 / リチウムイオン / 高エネルギー密度 / 協奏的相互作用 / デュアルイオン / 合金負極蓄電池 / デンドライトフリー / 協奏効果 / 多価カチオン伝導 / デンドライト / ｘ線回折 / 固溶体正極 / x線回折 / リチウムイオン電池 / 異常分散 / 固容体正極 / X線回折 / 放射光 / Ｘ線異常分散現象 / Ｘ線回折 / 高容量系正極材料 / リチウムイオン蓄電池正極材料 Less

ハイエントロピー化と格子欠陥により拡散を促進した多価イオン蓄電池正極材料Principal Investigator
- Principal Investigator
  
  河口智也
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 26040:Structural materials and functional materials-related
- Research Institution
  Tohoku University
Fundamental construction of a world woven by dual ions for metal-anode storage batteries
- Principal Investigator
  
  市坪哲
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section D
- Research Institution
  Tohoku University
デュアルイオン蓄電池に向けた新規ハイエントロピー酸化物正極の概念構築
- Principal Investigator
  
  市坪哲
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Tohoku University
第４世代放射光を用いた先進的X線解析によるハイエントロピー酸化物電極材料の開拓Principal Investigator
- Principal Investigator
  
  河口智也
- Project Period (FY)
  2022 – 2025
- Research Category
  
  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Tohoku University
Development of high-capacity cathodes for rechargeable batteries by controlling microstructure of oxidesPrincipal Investigator
- Principal Investigator
  
  河口智也
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 26040:Structural materials and functional materials-related
- Research Institution
  Tohoku University
Development of high-capacity cathodes for rechargeable batteries by controlling microstructure of oxidesPrincipal Investigator
- Principal Investigator
  
  Kawaguchi Tomoya
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 26040:Structural materials and functional materials-related
- Research Institution
  Tohoku University
Construction of new mechanism for dual-ion storage batteries concerted by lithium and multivalent ions
- Principal Investigator
  
  ICHITSUBO Tetsu
- Project Period (FY)
  2018 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section D
- Research Institution
  Tohoku University
デュアルイオン蓄電池におけるリチウムイオンと多価イオンが奏でる協奏的相互作用
- Principal Investigator
  
  市坪哲
- Project Period (FY)
  2018
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Tohoku University
Guidelines for increasing the capacity of nano-domain dispersed positive electrode materials developed by X-ray diffraction spectroscopy analyses
- Principal Investigator
  
  Matsubara Eiichiro
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Nanomaterials engineering
- Research Institution
  Kyoto University

All 2023 2022 2021 2020 2019 2017 2015 2014 Other

All Journal Article Presentation Patent

[Journal Article] Evaluating the Validity of a Hydrogen Mapping Method Based on Laser-induced Breakdown Spectroscopy2022
- Author(s)
  Imashuku Susumu、Kamimura Takumi、Kawaguchi Tomoya、Ichitsubo Tetsu
- Journal Title
  
  e-J. Surf. Sci. Nanotechnol.
  
  Volume: 20 Issue: 1 Pages: 7-12
- DOI
  10.1380/ejssnt.2022-007
- NAID
  130008161061
- ISSN
  1348-0391
- Year and Date
  2022-02-17
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K22038, KAKENHI-PROJECT-21H01646
[Journal Article] Operando Nanoscale Imaging of Electrochemically Induced Strain in a Locally Polarized Pt Grain2022
- Author(s)
  Sheyfer Dina、Mariano Ruperto G.、Kawaguchi Tomoya、Cha Wonsuk、Harder Ross J.、Kanan Matthew W.、Hruszkewycz Stephan O.、You Hoydoo、Highland Matthew J.
- Journal Title
  
  Nano Letters
  
  Volume: 23 Issue: 1 Pages: 1-7
- DOI
  10.1021/acs.nanolett.2c01015
- Data Source
  KAKENHI-PROJECT-21H01646
[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
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H01646, KAKENHI-PROJECT-20K22461, KAKENHI-PROJECT-18H05249
[Journal Article] Electrochemically Induced Strain Evolution in Pt-Ni Alloy Nanoparticles Observed by Bragg Coherent Diffraction Imaging2021
- Author(s)
  Kawaguchi Tomoya、Komanicky Vladimir、Latyshev Vitalii、Cha Wonsuk、Maxey Evan R.、Harder Ross、Ichitsubo Tetsu、You Hoydoo
- Journal Title
  
  Nano Letters
  
  Volume: 21 Issue: 14 Pages: 5945-5951
- DOI
  10.1021/acs.nanolett.1c00778
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01646
[Journal Article] pH- and Cation-Dependent Water Oxidation on Rutile RuO2(110)2021
- Author(s)
  Rao Reshma R.、Huang Botao、Katayama Yu、Hwang Jonathan、Kawaguchi Tomoya、Lunger Jaclyn R.、Peng Jiayu、Zhang Yirui、Morinaga Asuka、Zhou Hua、You Hoydoo、Shao-Horn Yang
- Journal Title
  
  The Journal of Physical Chemistry C
  
  Volume: - Issue: 15 Pages: 8195-8207
- DOI
  10.1021/acs.jpcc.1c00413
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15360, KAKENHI-PROJECT-21H01646
[Journal Article] Dynamic stability of active sites in hydr(oxy)oxides for the oxygen evolution reaction2020
- Author(s)
  Chung Dong Young、Lopes Pietro P.、Farinazzo Bergamo Dias Martins Pedro、He Haiying、Kawaguchi Tomoya、Zapol Peter、You Hoydoo、Tripkovic Dusan、Strmcnik Dusan、Zhu Yisi、Seifert Soenke、Lee Sungsik、Stamenkovic Vojislav R.、Markovic Nenad M.
- Journal Title
  
  Nature Energy
  
  Volume: 5 Issue: 3 Pages: 222-230
- DOI
  10.1038/s41560-020-0576-y
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15307
[Journal Article] In Situ Strain Evolution on Pt Nanoparticles during Hydrogen Peroxide Decomposition2020
- Author(s)
  Choi Sungwook、Chung Myungwoo、Kim Dongjin、Kim Sungwon、Yun Kyuseok、Cha Wonsuk、Harder Ross、Kawaguchi Tomoya、Liu Yihua、Ulvestad Andrew、You Hoydoo、Song Mee Kyung、Kim Hyunjung
- Journal Title
  
  Nano Letters
  
  Volume: 20 Issue: 12 Pages: 8541-8548
- DOI
  10.1021/acs.nanolett.0c03005
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15307
[Journal Article] In-situ to ex-situ in-plane structure evolution of stern layers on Pt(111) surface: Surface X-ray scattering studies2020
- Author(s)
  Kawaguchi Tomoya、Liu Yihua、Karapetrova Evguenia A.、Komanicky Vladimir、You Hoydoo
- Journal Title
  
  Journal of Electroanalytical Chemistry
  
  Volume: 875 Pages: 114495-114495
- DOI
  10.1016/j.jelechem.2020.114495
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15307
[Journal Article] Stern layers on RuO2 (100) and (110) in electrolyte: Surface X-ray scattering studies2020
- Author(s)
  Kawaguchi Tomoya、Rao Reshma R.、Lunger Jaclyn R.、Liu Yihua、Walko Donald、Karapetrova Evguenia A.、Komanicky Vladimir、Shao-Horn Yang、You Hoydoo
- Journal Title
  
  Journal of Electroanalytical Chemistry
  
  Volume: 875 Pages: 114228-114228
- DOI
  10.1016/j.jelechem.2020.114228
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15307
[Journal Article] Site- and phase-selective x-ray absorption spectroscopy based on phase-retrieval calculation 　（Ｒｅｖｉｅｗ） 2017
- Author(s)
  T.Kawaguchi, K.Fukuda, E.Matsubara
- Journal Title
  
  J.Phys.Cond.Matter
  
  Volume: 29 Issue: 11 Pages: 113002-113002
- DOI
  10.1088/1361-648x/aa53bb
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26246007
[Journal Article] Roles of transition metals interchanging with Lithium in electrode materials2015
- Author(s)
  T. Kawaguchi, K. Fukuda, K. Tokuda, M. Sakaida, T. Ichitsubo, M. Oishi, J. Mizuki and E. Matsubara.
- Journal Title
  
  Phys. Chemistry Chemical Physics
  
  Volume: 17 Issue: 21 Pages: 14064-14070
- DOI
  10.1039/c5cp00940e
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-26400322, KAKENHI-PROJECT-26246007
[Journal Article] Revisit to diffraction anomalous fine structure2014
- Author(s)
  T. Kawaguchi, K. Fukuda, K. Tokuda, K. Shimada, T. Ichitsubo, M. Oishi, J. Mizuki, E. Matsubara
- Journal Title
  
  Journal of synchrotron radiation
  
  Volume: 21 Issue: 6 Pages: 1247-1251
- DOI
  10.1107/s1600577514015148
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-13J02242, KAKENHI-PROJECT-26246007
[Patent] 正極活物質、マグネシウム蓄電池の製造方法2023
- Inventor(s)
  市坪哲、河口智也、安田優哉
- Industrial Property Rights Holder
  市坪哲、河口智也、安田優哉
- Industrial Property Rights Type
  特許
- Filing Date
  2023
- Data Source
  KAKENHI-PROJECT-18H05249
[Patent] 正極活物質、マグネシウム蓄電池の製造方法2023
- Inventor(s)
  市坪哲，河口智也，安田優哉
- Industrial Property Rights Holder
  市坪哲，河口智也，安田優哉
- Industrial Property Rights Type
  特許
- Filing Date
  2023
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] ハイエントロピー酸化物を用いた蓄電池正極材料2023
- Author(s)
  河口智也，安田優哉，根本菜摘，下川航平，李弘毅，岡本範彦，市坪哲
- Organizer
  電気化学会第90回大会
- Data Source
  KAKENHI-PROJECT-18H05249
[Presentation] Reaction-driven restructuring of Pt-Rh nanoparticles: Bragg coherent diffraction imaging (BCDI) during gas-surface reactions2023
- Author(s)
  Tomoya Kawaguchi, Thomas F. Keller, Henning Runge, Luca Gelisio, Christoph Seitz, Young Y. Kim, Wonsuk Cha, Stephan O. Hruszkewycz, Ross Harder, Ivan A. Vartanyants, Andreas Stierle and Hoydoo You
- Organizer
  APS March Meeting 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] ハイエントロピー酸化物を用いた蓄電池正極材料2023
- Author(s)
  河口智也，安田優哉，根本菜摘，下川航平，李弘毅，岡本範彦，市坪哲
- Organizer
  電気化学会第90回大会
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] Strain Evolution in Pt-Ni Alloy Nanoparticles During Electrochemical Ni Leaching Revealed by Bragg Coherent Diffraction Imaging2022
- Author(s)
  Tomoya Kawaguchi, Vladimir Komanicky, Vitalii Latyshev, Wonsuk Cha, Evan R. Maxey, Ross Harder, Tetsu Ichitsubo, and Hoydoo You
- Organizer
  241st ECS meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] リチウムイオン電池用酸化物正極材料におけるハイエントロピー化効果2022
- Author(s)
  河口智也, 卞篠, 安田優哉, 畠山拓也, 李弘毅, 市坪哲
- Organizer
  第48回固体イオニクス討論会
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] Bragg Coherent Diffraction Imaging Studies of Catalytic Alloy Nanoparticles2022
- Author(s)
  Tomoya Kawaguchi
- Organizer
  MIRAI2.0 Research & Innovation Week 2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] Effects of Enhanced-Entropy in Cathode Materials for Lithium-Ion Batteries2021
- Author(s)
  X. Bian, T. Kawaguchi, T. Hatakeyama, H. Li , T. Ichitsubo
- Organizer
  材料科学拠点シンポジウム
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] 混合エントロピー効果を利用した多元素酸化物正極材料2021
- Author(s)
  卞篠，河口智也，李弘毅，市坪哲
- Organizer
  金研講演会
- Data Source
  KAKENHI-PROJECT-21H01646
[Presentation] 混合エントロピー効果を利用した多元素酸化物正極材料2021
- Author(s)
  卞篠，河口智也，李弘毅，市坪哲
- Organizer
  第140回金研講演会
- Data Source
  KAKENHI-PROJECT-19K15307
[Presentation] 放射光X 線回折・分光法を用いたエネルギー材料の解析2020
- Author(s)
  河口智也
- Organizer
  「放射光を利用する原子レベルの構造解析と材料特性の解明」
- Data Source
  KAKENHI-PROJECT-19K15307
[Presentation] Li過剰系正極材料における微細組織構造と歪の電極性能に対する影響2019
- Author(s)
  河口智也, 市坪哲, 松原英一郎
- Organizer
  日本金属学会 2019年秋期(第165回)講演大会
- Data Source
  KAKENHI-PROJECT-19K15307
[Presentation] Site-Selective Analyses of Electronic and Local Structures Using Resonant X-ray Diffraction Spectroscopy2019
- Author(s)
  河口智也
- Organizer
  Summit of Materials Science (SMS) 2019 and GIMRT User Meeting
- Data Source
  KAKENHI-PROJECT-19K15307
[Presentation] サイト選択的局所構造解析による蓄電池正極材料の劣化機構の解明
- Author(s)
  河口智也，福田勝利，徳田一弥，境田真志，大石昌嗣，市坪哲，水木純一郎，松原英一郎
- Organizer
  第28回日本放射光学会年会放射光科学合同シンポジウム
- Place of Presentation
  立命館大学
- Year and Date
  2015-01-10 – 2015-01-12
- Data Source
  KAKENHI-PROJECT-26246007

1. ICHITSUBO Tetsu (40324826)

# of Collaborated Projects: 8 results

# of Collaborated Products: 9 results
2. 岡本範彦 (60505692)

# of Collaborated Projects: 4 results

# of Collaborated Products: 1 results
3. 下川航平 (30876719)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
4. 谷村洋 (70804087)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 八木俊介 (60452273)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. 李弘毅 (80876706)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. 田中万也 (60377992)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
8. 岡村浩之 (30709259)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
9. Matsubara Eiichiro (90173864)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
10. 豊田智史 (20529656)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 水木純一郎 (90354977)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
12. 大石昌嗣 (30593587)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
13. 福田竜生

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 片山祐

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Kawaguchi Tomoya 河口 智也

KAWAGUCHI Tomoya 河口 智也

Research Projects

Research Products

Co-Researchers

ハイエントロピー化と格子欠陥により拡散を促進した多価イオン蓄電池正極材料Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Fundamental construction of a world woven by dual ions for metal-anode storage batteries

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

デュアルイオン蓄電池に向けた新規ハイエントロピー酸化物正極の概念構築

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

第４世代放射光を用いた先進的X線解析によるハイエントロピー酸化物電極材料の開拓Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of high-capacity cathodes for rechargeable batteries by controlling microstructure of oxidesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of high-capacity cathodes for rechargeable batteries by controlling microstructure of oxidesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Construction of new mechanism for dual-ion storage batteries concerted by lithium and multivalent ions

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

デュアルイオン蓄電池におけるリチウムイオンと多価イオンが奏でる協奏的相互作用

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Guidelines for increasing the capacity of nano-domain dispersed positive electrode materials developed by X-ray diffraction spectroscopy analyses

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Evaluating the Validity of a Hydrogen Mapping Method Based on Laser-induced Breakdown Spectroscopy2022

Author(s)

Journal Title

DOI

NAID

ISSN

Year and Date

Language

Data Source

[Journal Article] Operando Nanoscale Imaging of Electrochemically Induced Strain in a Locally Polarized Pt Grain2022

Author(s)

Journal Title

DOI

Data Source

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

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Electrochemically Induced Strain Evolution in Pt-Ni Alloy Nanoparticles Observed by Bragg Coherent Diffraction Imaging2021

Author(s)

Kawaguchi Tomoya 河口智也

KAWAGUCHI Tomoya 河口智也

[Journal Article] Site- and phase-selective x-ray absorption spectroscopy based on phase-retrieval calculation 　（Ｒｅｖｉｅｗ） 2017