KUMAGAI Seiji

写真a

Affiliation

Graduate School of Engineering Science  Department of Mathematical Science and Electrical-Electronic-Computer Engineering  Electrical and Electronic Engineering Course 

Homepage URL

https://researchmap.jp/read0110947/?lang=en

Mail Address

E-mail address

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Research Interests 【 display / non-display 】

  • Power Engineering

  • Electrical Materials Engineering

  • Environmental and Energy Enginnering

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Graduating School 【 display / non-display 】

  • 1991.04
    -
    1995.03

    Akita University   Faculty of Mining   Department of Electrical and Electronic Engineering   Graduated

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Graduate School 【 display / non-display 】

  • 1995.04
    -
    1997.03

    Akita University  Graduate School, Division of Mining  Master's Degree Program  Completed

  • 1997.04
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    2000.03

    Akita University  Graduate School, Division of Mining  Doctor's Degree Program  Completed

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Campus Career 【 display / non-display 】

  • 2018.01
    -
    Now

    Akita University   Professor  

  • 2011.04
    -
    2017.12

    Akita University   Associate Professor  

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Academic Society Affiliations 【 display / non-display 】

  • 1998.01
    -
    Now
     

    United States

     

    IEEE

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Research Areas 【 display / non-display 】

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Power engineering  / Energy storage, secondary batteries, capacitors

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Thesis for a degree 【 display / non-display 】

  • Fundamental Research on Polymeric Materials Used in Outdoor High Voltage Insulation

    Seiji Kumagai 

      2000.03

    Single author

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Research Achievements 【 display / non-display 】

    ◆Original paper【 display / non-display 】

  • Recovery of Graphite Produced by Pyrolysis of Li-Ion Batteries During Cathode Recycling

    Cheng Jie Chng, Yusuke Abe, Mahmudul Kabir, Tatsuya Yodose, Ryoei Watanabe, Seiji Kumagai

    ChemElectroChem ( Chemistry Europe (Wiley) )  13 ( 10 ) e70229   2026.05  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Lithium-Ion Capacitors Using Cathode and Anode Materials Both Derived from Rice Husk (Review)

    Seiji Kumagai

    Journal of the Institute of Electrical Engineers of Japan ( Institute of Electrical Engineers of Japan )  146 ( 5 ) 244 - 247   2026.05  [Refereed]  [Invited]

    Research paper (journal)   Single author

    DOI

  • Thermally Controlled Dual Stabilization Mechanisms of Modified Kenaf-derived Lignin-based Aqueous Binders for Silicon Electrodes Used in Lithium-ion Batteries

    Tatsuki Hozumi, Reiichi Chiba, Masanori Ikeda, Daisuke Tashima, Yusuke Abe, Seiji Kumagai, Takuya Egcuhi

    Sustainable Energy & Fuels ( Royal Society of Chemistry )  10   1997 - 2004   2026.04  [Refereed]

    Research paper (journal)   Single author

    DOI

  • High-current-density Cyclability of Lithium-ion Batteries with LiCoO2/LiMn0.6Fe0.4PO4 Composite Cathodes

    Yusuke Abe, Cheng Jie Chng, Seiji Kumagai

    Journal of Applied Electrochemistry ( Springer Nature )  56   98   2026.04  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Application of Kenaf-derived Carbon as Conductive Electrode Additive in Electric Double-layer Capacitors

    Takuya Eguchi, Taiki Naganuma, Reiichi Chiba, Kimitaka Watanabe, Yusuke Abe, Seiji Kumagai

    International Journal of the Society of Materials Engineering for Resources   27 ( 1 ) 1 - 10   2026.04  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

    • display all >>

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    ◆Introduction and explanation【 display / non-display 】

  • Rice Husk-derived Positive Electrode Materials for Lithium-ion Capacitors

    Seiji Kumagai

    Electrical Review   103 ( 4 ) 56 - 60   2018.04

    Introduction and explanation (commerce magazine)   Single author

  • Working Mechanisms and Electrodes Materials of Lithium-ion Capacitors

    Seiji KUMAGAI

      62 ( 12 ) 22 - 26   2017.12

    Introduction and explanation (commerce magazine)   Single author

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Books 【 display / non-display 】

  • Electrochemical Capacitors

    Seiji Kumagai, Daisuke Tashima

    MDPI Books  2020.08 ISBN: 9783039367221

    Technological development of energy storage devices is now ongoing worldwide for mitigating carbon dioxide emissions to combat global warming. Several industrially promising sectors such as automobiles, renewable energies, power quality management, and mobile gadgets require high-performance and low-cost energy storage devices. Electrochemical capacitors have been accepted as the key elements for realizing charge–discharge cycling with high power density, high efficiency, and long life. Electric double-layer capacitors, pseudocapacitors, and hybrid capacitors, which can be called supercapacitors, are typical modern electrochemical capacitors intended for energy storage.........

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Industrial Property 【 display / non-display 】

  • RECYCLED POSITIVE-ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, METHOD FOR USING RECYCLED POSITIVE-ELECTRODE MATERIAL, RECYCLED POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

    Patent

    Industrial Property No PCT/JP2023/019970  Unexpectedly No WO2023/243385 

    Application date： 2023.05.29

    Publication date： 2023.12.21

  • RECYCLED POSITIVE-ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, METHOD FOR USING RECYCLED POSITIVE-ELECTRODE MATERIAL, RECYCLED POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

    Patent

    Industrial Property No 2022-165994  Unexpectedly No 2023-183355 

    Application date： 2022.10.17

    Publication date： 2023.12.27

  • RECYCLED CATHODE MATERIAL PRECURSOR, RECYCLED CATHODE MATERIAL, METHOD FOR MANUFACTURING THEM, AND RECYCLED LITHIUM ION SECONDARY BATTERY

    Patent

    Industrial Property No PCT/JP2022/024041  Unexpectedly No WO 2022/270393 A1 

    Application date： 2022.06.16

    Publication date： 2022.12.29

  • RECYCLED POSITIVE-ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, METHOD FOR USING RECYCLED POSITIVE-ELECTRODE MATERIAL, RECYCLED POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

    Patent

    Industrial Property No 2022-096429 

    Application date： 2022.06.15

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Academic Awards Received 【 display / non-display 】

  • Scientific Reports Top 100 in Materials Science - 2022

    2023.03.12   Springer Nature   Role of SiOx in Rice-husk-derived Anodes for Li-ion Batteries

    Winner： Yusuke Abe, Masahiro Tomioka, Mahmudul Kabir, Seiji Kumagai

  • Yamazaki Prize, The Society of Materials Engineering for Resources of Japan

    2019.06.25    

    Winner： Seiji Kumagai

  • Best Poster Award (ICRERA 2018, Paris)

    2018.10.21    

    Winner： Takuya Eguchi, Daisuke Tashima, Masumi Fukuma, Seiji Kumagai

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

  • Creation of ultra-high-density energy storage capacitors, and the interface and bulk phenomena of Si particles-Li-electrolyte

    Grant-in-Aid for Scientific Research(A)

    Project Year： 2025.04  -  2028.03  Investigator(s): Seiji Kumagai

  • Grant-in-Aid for Scientific Research(B)

    Project Year： 2024.04  -  2027.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year： 2022.04  -  2025.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year： 2019.04  -  2022.03 

  • Grant-in-Aid for Scientific Research(C)

    Project Year： 2018.04  -  2021.03 

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Presentations 【 display / non-display 】

  • Impact of Electrochemical Preconditioning of Highly Porous Activated Carbon Cathode on Si-based Li-ion Capacitors

    Cheng Jie Chng, Yusuke Abe, Seiji Kumagai

    8th International Conference on Advanced Capacitors (ICAC2025)  (New Taipei City, Taiwan)  2025.12  -  2025.12 

  • Electrochemical Characteristics of Lithium-ion Capacitors Using Binder-Coated Si Negative Electrode

    Takuya Eguchi, Shogo Kawamata, Reiichi Chiba, Seiji Kumagai

    8th International Conference on Advanced Capacitors (ICAC2025)  (New Taipei City, Taiwan)  2025.12  -  2025.12 

  • Effect of Electrode Heat Treatment on the Rate Characteristics and Cycle Characteristics of Si Electrodes Using Kenaf-Derived Lignin Binder in Half Cells

    Tatsuki Hozumi, Reiichi Chiba, Seiji Kumagai, Daisuke Tashima, Takuya Eguchi

    8th International Conference on Advanced Capacitors (ICAC2025)  (New Taipei City, Taiwan)  2025.12  -  2025.12 

  • Composite Anode of Waste Solar Panel-derived Glass and Graphite for the Application of Lithium-ion Batteries

    Takuya Eguchi, Reiich Chiba, Yusuke Abe, Daisuke Tashima, Seiji Kumagai

    10th International Conference on Materials Engineering for Resources (ICMR2025 AKITA)  (Akita)  2025.10  -  2025.10 

  • Charge-discharge Performance of Lithium-ion Capacitors Using Nano-Si Anodes at Different Prelithiation Levels

    Cheng Jie Chng, Aqil Aqmar Bin Rosli, Yusuke Abe, Seiji Kumagai

    10th International Conference on Materials Engineering for Resources (ICMR2025 AKITA)  (Akita)  2025.10  -  2025.10 

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Academic Activity 【 display / non-display 】

  • 2025.10
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    Now

  • 2025.04
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    2026.03

  • 2025.04
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    2026.03

  • 2025.04
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    2026.03

  • 2025.04
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    2026.03

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Recommended URL 【 display / non-display 】

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