Updated on 2025/04/07

写真a

 
HIRAYAMA Satoshi
 
Organization
Faculty of Advanced Engineering
Department
School of Engineering Department of Electronic Systems Engineering
Title
Associate Professor

Education

  • University of Tsukuba   Graduate School of Systems and Information Engineering   Department of Engineering Mechanics and Energy

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    Course completed： Doctor's Course

    Country： Japan

Degree

  • 博士（工学） ( 2015.3   筑波大学 )

Research Field

  • 開閉保護，放電プラズマ，電力・エネルギー

Research Experience

  • The University of Shiga Prefecture   School of Engineering Department of Electronic Systems Engineering   Lecturer

    2019.4

  • The University of Shiga Prefecture   School of Engineering Department of Electronic Systems Engineering   Assistant Professor

    2015.4 - 2019.3

Association Memberships

  • Institute of Electrical and Electronics Engineers

    2015.6

  • 電気学会

    2009.1

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Power engineering

Available Technology

  • 電磁力を利用した大電力遮断技術の研究

Papers

  • Maze-solving in a plasma system based on functional analogies to reinforcement-learning model Reviewed

    O. Sakai, T. Karasaki, T. Ito, T. Murakami, M. Tanaka, M. Kambara, S. Hirayama

    PLOS ONE   19 ( 4 )   2024.3

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

    DOI： 10.1371/journal.pone.0300842

  • Investigation of Time Domain Measurement of Electrochemical Impedance Spectrum in Low Frequency Range for Lithium-Ion Batteries Using Preset Equivalent Circuit Model Reviewed

    950   2023.10

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.jelechem.2023.117894

  • Elementary Process Analysis of Charge Transfer Processes of Lithium-Ion Batteries Through Distribution of Relaxation Times Method

    S. Tomita, D. Kawaguchi, S. Hirayama, Y. Inui

    Proceedings of the International Council on Electrical Engineering Conference   2023.7

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • Comparison of Temperature Dependence of Electrochemical Impedance for Lithium-Ion Batteries with Different Cathode Materials International journal

    D. Kawaguchi, S. Tomita, S. Hirayama, Y. Inui

    Proceedings of the International Council on Electrical Engineering Conference 2022   2022.7

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    Language：English   Publishing type：Research paper (international conference proceedings)   Participation form：Joint(The main charge)  

  • Temperature dependence of impedance spectrum of charge-transfer processes in lithium-ion batteries with nickel-manganese-cobalt cathode and graphite anode Reviewed International journal

    Inui Y., Hirayama S., Tanaka T.

    Journal of Energy Storage   44   2021.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Journal of Energy Storage   Participation form：Joint(The vice charge)  

    The temperature dependence of the impedance spectrum of charge-transfer processes in lithium-ion batteries with nickel-manganese-cobalt cathode and graphite anode within a range of 10 to 40 °C was investigated. The authors prepared eight test batteries by degrading two kinds of lithium-ion batteries having different manufacturer models through different degradation processes. Their impedance spectra were measured under various temperature and state of charge conditions. A corresponding equivalent circuit model was introduced and the values of its circuit constants were identified for all of the measured impedance spectrum data through fitting calculations. The authors then quantitatively evaluated the temperature dependence of all of the identified circuit constants. The Arrhenius type temperature dependence was confirmed for each charge-transfer resistance. Whereas, it was revealed that the temperature dependence of all other circuit constants is negligible. Using the obtained evaluation results, the authors proposed a novel method to estimate the impedance spectrum of charge-transfer processes under any battery temperature condition within a range of several degrees to several tens of degrees Celsius from spectrum data measured under a freely selected battery temperature condition within this range. The validity of the proposed method for its practical use was confirmed through comparison between estimated and measured results.

    DOI： 10.1016/j.est.2021.103390

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85122797922&origin=inward

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Awards

  • 電気学会優秀論文発表A賞

    2019.3   電気学会   LC共振回路に並列接続されたDCロータリアークの数値解析

    平山智士

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

  • 開閉保護研究発表賞

    2014.3   電気学会　開閉保護技術委員会   ロータリアークプラズマに与える誘導磁界の影響

    平山智士

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

  • 開閉保護研究発表賞

    2013.3   電気学会　開閉保護技術委員会   外部磁界印加型ガス遮断器の消弧過程に関する数値解析

    平山智士

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

  • 第8回新エネルギー技術シンポジウムポスター賞

    2013.3   新エネルギー技術シンポジウム実行委員会   電力用ガス遮断器の熱的遮断性能に与える外部印加磁界の影響

    平山智士

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

  • 電気学会優秀論文発表A賞

    2011.3   電気学会   磁場印加SF6アークプラズマの電磁流体挙動に関する検討

    平山智士

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

Presentations

  • リチウムイオン電池正極活物質回収に用いる大気圧高電圧パルス放電装置の放電条件の検討

    (1) 後藤聡汰，大﨑亀太郎，相原治斗，田中正志，柳平丈志，平山智士，乾　義尚

    令和5年度電気学会東京支部茨城支所研究発表会  2023.12  電気学会

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    Event date： 2023.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：茨城  

  • 大気圧高電圧パルス放電装置のラミネート形リチウムイオン電池正極活物資回収特性の検討

    大﨑亀太郎，後藤聡汰，田中正志，柳平丈志，平山 智士，乾　義尚

    令和5年度電気学会東京支部茨城支所研究発表会  2023.12  電気学会

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    Event date： 2023.12

    Language：Japanese   Presentation type：Oral presentation (general)  

  • リチウムイオン電池モジュールの温度依存性を考慮した回路シミュレーション

    平井希一，曽我篤志，平山智士，乾　義尚

    令和5年電気関係学会関西連合大会  2023.11 

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    Event date： 2023.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：兵庫  

  • リチウムイオン電池正極活物質回収を目指した大気圧高電圧パルス放電装置の電極形状の実験的検討

    後藤聡汰，大﨑亀太郎，相原治斗，田中正志，柳平丈志，平山智士，乾　義尚

    電気学会新エネルギー・環境研究会  2023.9  電気学会

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    Event date： 2023.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：静岡  

  • 磁場印加ラバルノズルアークにおける輻射熱輸送の圧力依存性

    信木　慎，平山智士，乾　義尚

    電気学会新エネルギー・環境研究会  2023.9  電気学会

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    Event date： 2023.9

    Language：Japanese   Presentation type：Oral presentation (general)  

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