TOGASAKI, Norihiro

写真a

Affiliation

Research Council (Research Organization), Research Organization for Nano & Life Innovation

Job title

Junior Researcher(Assistant Professor)

Concurrent Post 【 display / non-display

  • Faculty of Science and Engineering   Graduate School of Advanced Science and Engineering

Education 【 display / non-display

  • 2012.09
    -
    2016.03

    Waseda University   先進理工学研究科   ナノ理工学専攻  

  • 2003.04
    -
    2005.03

    Waseda University   理工学研究科   応用化学専攻  

  • 1999.04
    -
    2003.03

    Waseda University   理工学部   応用化学科  

Degree 【 display / non-display

  • Waseda University, Graduate School of Advanced Science and Engineering, Department of Nanoscience and Nanoengineering   Research and Development of Lithium Metal Anode for Future Lithium-Air Batteries

Research Experience 【 display / non-display

  • 2017.10
    -
     

    Waseda University   Research Organization for Nano & Life Innovation   Assistant Professor

  • 2017.04
    -
    2017.09

    Waseda University   Research Organization for Nano & Life Innovation   Research Assistant

  • 2014.04
    -
    2017.03

    Waseda University   School of Advanced Science and Engineering, Department of Applied Chemistry   Research Associate

  • 2012.06
    -
    2012.09

    Waseda University   理工学研究所   Research Assistant

  • 2005.04
    -
    2012.05

    株式会社東芝セミコンダクター社

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Research Areas 【 display / non-display

  • Energy chemistry

  • Electron device and electronic equipment

Papers 【 display / non-display

  • Detection of Over-Discharged Nickel Cobalt Aluminum Oxide Lithium Ion Cells Using Electrochemical Impedance Spectroscopy and Differential Voltage Analysis

    Norihiro Togasaki, Tokihiko Yokoshima, Tetsuya Osaka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   168 ( 7 )  2021.07  [Refereed]

    Authorship:Lead author, Corresponding author

     View Summary

    Addressing the reuse of lithium ion batteries (LIBs) extracted from used battery packs is an option for addressing environmental concerns. To guarantee their safety, the development of non-destructive analysis to identify LIBs exposed to over-discharge is mandatory. In this study, over-discharge-induced degradation in graphite/nickel cobalt aluminum oxide (NCA) lithium ion cells was investigated using differential voltage analysis (DVA) and electrochemical impedance spectroscopy (EIS). Two-stage cell capacity decay was solely observed in the deep over-discharge cycling at a lower cutoff voltage (LCV) of 1.00 V; in the first stage, the capacity gradually decreased similar to that at LCV >= 2.50 V, and then decreased steeply. In the over-discharge cycling, the DVA results confirmed that the electrode balancing between the anode and cathode contribute to increasing the cell capacity, whereas the cathode capacity decreased as cycling progressed, suggesting that electrode degradation induced by over-discharge is difficult to assess using the cell capacities. EIS analysis revealed that the charge-transfer resistance and interfacial capacitance of the NCA cathode changed markedly in the first stage under over-discharge. This study reports a meticulous characterization of over-discharge of LIBs using non-destructive electrochemical analysis and introduces a critical aspect for their detection before serious cell deterioration.

    DOI

  • Detection of unbalanced voltage cells in series-connected lithium-ion batteries using single-frequency electrochemical impedance spectroscopy (In press)

    Norihiro Togasaki, Tokihiko Yokoshima, Yasumasa Oguma, Tetsuya Osaka

    Journal of Electrochemical Science and Technology    2021.05  [Refereed]

    Authorship:Lead author, Corresponding author

  • Facile fabrication of sulfur/Ketjenblack-PEDOT:PSS composite as a cathode with improved cycling performance for lithium sulfur batteries

    Seongki Ahn, Takayuki Noguchi, Toshiyuki Momma, Hiroki Nara, Tokihiko Yokoshima, Norihiro Togasaki, Tetsuya Osaka

    CHEMICAL PHYSICS LETTERS   749  2020.06  [Refereed]

     View Summary

    Lithium sulfur batteries (LSBs) are regarded as promising electrochemical energy storage devices owing to their higher theoretical capacity than commercial cathode materials. Herein, we report a simple method for preparing a modified sulfur/Ketjenblack (S/KB) cathode using polymer composite poly(3,4-ethylenedioxythiophene)-poly (styrenesulfonate) (PEDOT:PSS), which displays ionic and electron conductivity and can suppress polysulfide dissolution during the charge-discharge process. The S/KB + PEDOT:PSS cathode displayed higher electrochemical performance than the S/KB cathode. The effectiveness of suppressing polysulfide dissolution was determined visually and by UV-visible spectroscopy. The findings demonstrate the multi-functionality of PEDOT:PSS as an efficient electron conductive additive for S/KB cathode in high-performance LSBs.

    DOI

  • Prediction of overcharge-induced serious capacity fading in nickel cobalt aluminum oxide lithium-ion batteries using electrochemical impedance spectroscopy

    Norihiro Togasaki, Tokihiko Yokoshima, Yasumasa Oguma, Tetsuya Osaka

    JOURNAL OF POWER SOURCES   461 ( 228168 )  2020.06  [Refereed]

    Authorship:Lead author, Corresponding author

     View Summary

    Prediction of degradation in lithium-ion batteries is critical to ensure battery safety. In this study, we report for the first time that electrochemical impedance spectroscopy (EIS) predicts serious capacity fade in lithium-ion batteries, which results from charge-discharge cycling under overcharge conditions. A nickel cobalt aluminum oxide (NCA) lithium-ion cell shows a two-stage capacity fade in the overcharge condition with an upper cutoff voltage (UCV) of 4.4 V. The capacity gradually decreases as cycling progresses (first stage), and then decreases steeply in the later cycles (second stage). Such a two-stage capacity fade is not observed when cell cycling in the appropriate voltage range (UCV <= 4.2 V). In the first stage, the cell capacities cycled at UCVs of 4.2 V and 4.4 V are approximately identical, with an inductively coupled plasma atomic emission spectrometry analysis confirming overcharge-induced deposition of Ni and Co on the anode surface. EIS analysis is used to model these deposited metals as enhanced impedance signals that represent the charge transfer resistance and interfacial capacitance of the anode in the first stage. This allows the advance prediction of overcharge-induced serious capacity decay in lithium-ion batteries to prevent cell destruction.

    DOI

  • Communication-Solvate Ionic Liquid Incorporating Lithium Nitrate as a Redox Mediator for Lithium-Oxygen Batteries

    Norihiro Togasaki, Takuya Naruse, Toshiyuki Momma, Tetsuya Osaka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   166 ( 14 ) A3391 - A3393  2019.10  [Refereed]

    Authorship:Lead author, Corresponding author

     View Summary

    A solvate ionic liquid (SIL) of highly concentrated 4.0 M lithium nitrate (LiNO3) in a dimethylsulfoxide solution is introduced for lithium-oxygen batteries. As a redox mediator (RM), highly concentrated LiNO3 in the SIL works more effectively than the lower concentrated one to decompose lithium peroxide (Li2O2) on the cathode with an extremely low charging voltage of 3.6 V. In addition, X-ray photoelectron spectroscopy analysis confirms that side products during discharging and charging are markedly restricted in the SIL. The low solubility of Li2O2 intermediate (LiO2) in the SIL may be an important reason for the restriction of side products. (C) The Author(s) 2019. Published by ECS.

    DOI

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Misc 【 display / non-display

  • Electrochemical Impedance Analysis for Discharging Process of Sulfur Cathode in Polysulfide Soluble DOL/DME-based Electrolyte

    橋都宏汰, 門間聰之, 横島時彦, 戸ヶ崎徳大, 中尾愛子, 奈良洋希, 逢坂哲彌, 家路豊成

    電気化学会大会講演要旨集(CD-ROM)   87th  2020

    J-GLOBAL

  • Electrochemical Impedance Analysis for Discharging process of Sulfur Cathode in Ionic Liquid Electrolyte

    平柳朋恵, 橋都宏汰, 門間聰之, 横島時彦, 戸ヶ崎徳大, 中尾愛子, 奈良洋希, 逢坂哲彌, 家路豊成

    電気化学会大会講演要旨集(CD-ROM)   87th  2020

    J-GLOBAL

  • LiNO3/DMSO系高濃度電解液がLi-O2二次電池用正極反応に及ぼす効果

    成瀬卓弥, 戸ヶ崎徳大, 門間聰之, 門間聰之, 逢坂哲彌

    電気化学秋季大会講演要旨集(CD-ROM)   2017  2017

    J-GLOBAL

  • Development of fine pitch wire bonding using electroless Ni-P and Au plating

    戸ヶ崎 徳大, 相良 潤也, 原田 享

    マイクロエレクトロニクスシンポジウム論文集   16   331 - 334  2006.10

    CiNii

Industrial Property Rights 【 display / non-display

  • 電池システムおよび電池状態予測方法

    逢坂哲彌, 戸ヶ崎徳大, 横島時彦, 内海和明, 津田信悟, 小熊泰正

    Patent

  • 電池状態推定方法および電池システム

    逢坂哲彌, 戸ヶ崎徳大, 横島時彦, 内海和明, 津田信悟

    Patent

  • 電池状態推定方法および電池システム

    逢坂哲彌, 戸ヶ崎徳大, 横島時彦, 内海和明, 津田信悟, 小熊泰正

    Patent

  • 電池状態推定方法および電池システム

    逢坂哲彌, 戸ヶ崎徳大, 横島時彦, 内海和明, 津田信悟, 小熊泰正

    Patent

  • 電池状態推定方法および電池システム

    逢坂哲彌, 戸ヶ崎徳大, 横島時彦, 内海和明, 津田信悟, 小熊泰正

    Patent

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Awards 【 display / non-display

  • Mizuno award

    2016.03   Waseda University   Research and Development of Lithium Metal Anode for Future Lithium-Air Batteries

  • Poster award

    2015.12   Gyeongbuk Institute of Science and Technology (DGIST)-WASEDA workshop on electrochemistry   Enhanced Cycling Performance of a Li Metal Anode in a Dimethylsulfoxide-based Electrolyte Using Highly Concentrated Lithium Salt for a Lithium-Oxygen Battery

  • Poster award

    2013.12   The 6th International Workshop on Advanced Electrochemical Power Sources   Effect of trace H2O on charge-discharge cycling life for lithium metal battery

  • Poster award

    2013.08   Daegu Gyeongbuk Institute of Science and Technology (DGIST)-WASEDA workshop on electrochemistry   Effect of trace H2O on charge-discharge cycling life for lithium metal rechargeable battery

  • Innovation Award (President Award)

    2010.11   TOSHIBA Corporation  

    Winner: Norihiro Togasaki

Research Projects 【 display / non-display

  • リチウム金属のクーロン効率およびデンドライト析出の改善に向けた電極固液界面の構築

    若手研究

    Project Year :

    2020.04
    -
    2023.03
     

    戸ヶ崎 徳大

     View Summary

    本研究課題では、過去四半世紀以上にわたりリチウム金属負極の二次電池化を阻んできた “低いクーロン効率”および“デンドライト状析出”の問題に対する改善として、適切な電極/電解液界面(固液界面)の設計を行っていく。固体側の工夫として、化学的・電気化学的に安定な固体電解質層を人工的に負極表面に形成しクーロン効率の改善を図るとともに、溶液側では、溶媒和イオン液体にアルカリ金属イオンを添加することを試み、副反応と局所的な電流集中の効率的な改善を目指す。最終的に、適切に設計された固体電解質層と溶液構造とを統合し、リチウム金属の能力を最大限に引き出す固液界面の構築を図る

  • 非水系リチウム-空気電池用リチウムイオン選択透過膜の作製と電気化学的評価

    Project Year :

    2013.06
    -
    2014.02
     

  • 交流インピーダンス法を用いた非水系リチウム-空気電池の負極における充放電特性の電気化学的解析に関する研究

    Project Year :

    2012.10
    -
    2013.02
     

Presentations 【 display / non-display

  • Dependence of Impedance Response of Li-S Battery on Polysulfide Solubility of Electrolyte II - Mid - End Stage of Discharge

    Tokihiko Yokoshima, Norihiro Togasaki, Aiko Nakao, Hiroki Nara, Tetsuya Osaka, Tomoe Hirayanagi, Kota Hashizume, Toshiyuki Momma, Toyonari Yaji

    Pacific Rim Meeting (PRIME) on Electrochemical and Solid State Science 2020 

    Presentation date: 2020.10

    Event date:
    2020.10
     
     
  • Dependence of Impedance Response of Li-S Battery on Polysulfide Solubility of Electrolyte I - Initial Stage of Discharge

    Kota Hashizume, Toshiyuki Momma, Tokihiko Yokoshima, Norihiro Togasaki, Aiko Nakao, Hiroki Nara, Tetsuya Osaka, Toyonari Yaji

    Pacific Rim Meeting (PRIME) on Electrochemical and Solid State Science 2020 

    Presentation date: 2020.10

    Event date:
    2020.10
     
     
  • 電気化学インピーダンス法によるポリスルフィド溶解性 DOL/DMEを電解液としたリチウム硫黄電池正極の放電挙動解析

    平柳朋恵, 橋都宏汰, 門間聰之, 横島時彦, 戸ヶ崎徳大, 中尾愛子, 奈良洋希, 逢坂哲彌, 家路豊成

    電気化学会 第85回大会,愛知 

    Presentation date: 2020.03

    Event date:
    2020.03
     
     
  • 電気化学インピーダンス法によるポリスルフィド難溶性溶媒和イオン液体を電解液としたリチウム硫黄電池正極の放電挙動解析

    橋都 宏汰, 門間 聰之, 横島 時彦, 戸ヶ崎 徳大, 中尾 愛子, 奈良 洋希, 逢坂 哲彌, 家路 豊成

    電気化学会 第85回大会,愛知 

    Presentation date: 2020.03

    Event date:
    2020.03
     
     
  • Prediction of serious capacity fading at overcharge conditions in NCA lithium-ion batteries using electrochemical impedance spectroscopy

    Norihiro Togasaki, Tokihiko Yokoshima, Yasumasa Oguma, Tetsuya Osaka

    7th International Renewable and Sustainable Energy Conference, Agadir, Morocco 

    Presentation date: 2019.11

    Event date:
    2019.11
     
     

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Specific Research 【 display / non-display

  • 大気中での充放電を可能とするリチウム-空気電池用金属リチウム負極の研究

    2014   逢坂哲彌, 門間聰之

     View Summary

    Dimethyl sulfoxide (DMSO) solventis widely researched in Li-O2 battery due to its stable cyclingperformance compared to other solvents. However theinstability of a Li metal in contact with DMSO is still concerned. Therefore, theeffect of the solid electrolyte interphase (SEI) on a Li anode on the charge-dischargecycling performance in 1 M LiTFSI in DMSO is examined using charge-dischargecycling. The chemical structure on the surface of the SEI is revealed to stronglyaffect the cycling performance of a lithium metal anode. A low coulombicefficiency, which is less than 75 %, is observed when the organic compoundssuch as lithium alkyl carbonates (ROCO2Li) and polycarbonate aremainly formed on the surface. However, when the inorganic compounds such as Li2CO3and Li2O are formed in place of the organic compounds, the enhancedcoulombic efficiency, which is over 85%, is obtained. In order to prevent sidereactions with the electrolyte during cycling in 1 M LiTFSI/DMSO, the lithiumsurface should be protected by inorganic compounds prior to the cycling.

 

Syllabus 【 display / non-display