WATANABE Masayoshi

Affiliation

Institute of Advanced Sciences

Job Title

Research Professor

Date of Birth

1954

Research Fields, Keywords

Organic Materials, Electrochemistry, Polymer Chemistry, Colloid Chemistry

Mail Address

E-mail address

Web Site

https://acerc.ynu.ac.jp/en/index.html

Related SDGs




ORCID  https://orcid.org/0000-0003-4092-6150

写真a

The Best Research Achievement in Research Career 【 display / non-display

Education 【 display / non-display

  • 1978.4
    -
    1982.3

    Waseda University   Doctor Course   Unfinished Course

  • 1974.4
    -
    1978.3

    Waseda University   Department of Applied Chemistry   Graduated

Degree 【 display / non-display

  • Doctor of Engineering - Waseda University

Campus Career 【 display / non-display

  • 2020.4
     
     

    Duty   Yokohama National UniversityInstitute of Advanced Sciences   Research Professor  

  • 2017.4
    -
    2019.3

    Concurrently   Yokohama National UniversityFaculty of Engineering   Dean  

  • 2001.4
    -
    2020.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Professor  

  • 1998.4
    -
    2001.3

    Duty   Yokohama National UniversitySchool of Engineering   Professor  

  • 1994.6
    -
    1998.3

    Duty   Yokohama National UniversitySchool of Engineering   Associate Professor  

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External Career 【 display / non-display

  • 1999.1
    -
    2002.3

    The University of Tokyo   Graduate School of Engineering   Visiting Professor  

  • 1988.8
    -
    1990.3

    University of North Carolina   Department of Chemistry   Researcher  

  • 1982.4
    -
    1992.3

    Sophia University   Department of Chemistry   Assistant Professor  

Academic Society Affiliations 【 display / non-display

  • 1999
     
     
     

    The Electrochemical Society

  • 1990
     
     
     

    International Society of Electrochemistry

  • 1988
     
     
     

    The American Chemical Society

  • 1984
     
     
     

    The Electrochemical Society of Japan

  • 1977
     
     
     

    The Chemical Society of Japan

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Research Areas 【 display / non-display

  • Nanotechnology/Materials / Polymer chemistry  / Polymer Synthesis

  • Nanotechnology/Materials / Fundamental physical chemistry  / Industrial Physical Chemistry

  • Nanotechnology/Materials / Polymer chemistry  / Polymer Structure. Property

 

Research Career 【 display / non-display

  • ナノ構造電極の作製とこれを用いた電気化学系の構造

    Project Year:

  • 高分子イオニクス材料に関する研究

    Project Year:

  • イオン液体を用いたナノ構造体に関する研究

    Project Year:

  • イオン液体の基礎物性理解とエネルギー変換系への適用

    Project Year:

Books 【 display / non-display

  • Functional Macromolecular Complexes

    K. Yamamoto and H. Nishihara, Eds.( Role: Sole author ,  Masayoshi Watanabe)

    Royal Society of Chemistry  ( ISBN:978-1-83767-470-1  [Reviewed]

    DOI

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    Total pages:399   Responsible for pages:271-295   Language:English Book type:Scholarly book

  • 次世代二次電池の開発動向

    渡邉正義( Role: Joint author ,  第3章 正極不溶型リチウム硫黄電池の開発)

    シーエムシー出版 

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    Total pages:247   Responsible for pages:23-32   Language:Japanese Book type:Scholarly book

  • 「イオン液体の実用展開へ向けた最新動向」大内幸雄監修 2章”電解質としてのイオン液体の広がり”

    渡邉正義、大内幸雄監修( Role: Sole author ,  2章 電解質としてのイオン液体の広がり)

    シーエムーシー出版 

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    Responsible for pages:10-22   Language:Japanese Book type:Scholarly book

  • Li-S Battery Using Li2S Cathode

    Masayoshi Watanabe( Role: Sole author)

    Next Generation Batteries 

    DOI

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    Responsible for pages:403-414   Language:English Book type:Scholarly book

  • Outline of Li-S Battery Project

    Masayoshi Watanabe( Role: Sole author)

    Next Generation Batteries 

    DOI

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    Responsible for pages:273-275   Language:English Book type:Scholarly book

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Thesis for a degree 【 display / non-display

  • Studies on Electrically Conducting Polymers with Electronic and Ionic Carriers

    渡邉 正義

    1983.10

    Doctoral Thesis   Single Work  

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    早稲田大学
    電子伝導性高分子およびイオン伝導性高分子に係わる博士研究をまとめたものである。電子伝導性高分子に関しては、高分子電荷移動錯体に関し、高分子構造をブロック共重合体としたときの、自己集合構造を検討し、これと発現機能の相関を議論した。またイオン伝導性高分子に関しては、世界に先掛け高分子中でのキャリヤイオンの生成およびこの移動について議論した内容である。

Papers 【 display / non-display

  • Self-assembled Cationic Surfactant-based Electrolytes for Rechargeable Aqueous Zinc Metal Batteries

    SHEN Guohong, KONDOU Shinji, NAKAGAKI Hiroki, WADA Gakuto, WATANABE Masayoshi, DOKKO Kaoru, UENO Ka … Show more authors

    Electrochemistry   93 ( 3 )   037008 - 037008   2025.3

    DOI CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:公益社団法人 電気化学会   Joint Work  

    <p>Surfactants possess unique properties in bulk solutions and at interfaces, naturally forming self-assembled structures. Herein, cetyltrimethylammonium trifluoroacetate (CTATFA) was incorporated into aqueous electrolytes as a cationic surfactant to enhance their ionic conductivity and electrochemical stability. The presence of CTATFA widened the electrochemical stability windows of both Li-based and Zn-based electrolytes. The Zn-based electrolyte exhibited high ionic conductivity and low viscosity in the bulk solution. In a Zn symmetric cell, the electrolyte containing 1 M Zn(TFA)<sub>2</sub>-0.5 M CTATFA demonstrated excellent Zn plating/stripping reversibility for over 800 h at 1 mAh cm<sup>−2</sup> and 1 mA cm<sup>−2</sup>. A Zn-Cu cell with 1 M Zn(TFA)<sub>2</sub>-0.5 M CTATFA exhibited excellent reversibility, achieving over 300 plating/stripping cycles at 5 mA cm<sup>−2</sup> and 5 mAh cm<sup>−2</sup>. The Zn/MnO<sub>2</sub> cell using the Zn-based electrolyte also demonstrated a specific capacity of 105 mAh g<sup>−1</sup> over 750 cycles at a current density of 0.5 A g<sup>−1</sup>. This study provides insight into the design of high-performance aqueous electrolytes based on the self-assembly and surface adsorption of cationic surfactants.</p>

  • Sulfolane-Based Gel Polymer Electrolytes Enhanced by 2D Boron Nitride Nanosheets for Optimized Ion Dynamics and Stability in Lithium Metal Batteries

    Ma Chao, Kojitsu Mari, Fujimoto Hikaru, Tsuzuki Seiji, Liu Xizheng, Watanabe Masayoshi, Ueno Kazuhi … Show more authors

    ACS Applied Polymer Materials   7 ( 5 )   3296 - 3308   2025.2

    CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)   Joint Work  

    Lithium metal batteries (LMBs) offer tremendous potential due to their high energy density, but practical applications are limited by challenges such as dendrite formation, safety risks, and interfacial instability. This study introduces a composite gel polymer electrolyte (GPE) that systematically integrates sulfolane-based highly concentrated electrolytes (HCEs) with two-dimensional hexagonal boron nitride nanosheets (BNNs). Through advanced experimental characterizations, electrochemical measurements, and theoretical calculations, the composite GPE is shown to achieve enhanced mechanical strength, thermal stability, and superior Li ion transport properties. The incorporation of BNNs not only reinforces the electrolyte matrix but also facilitates selective Li ion transport via strong interactions between Li ions and the filler, as validated by theoretical studies. The optimized composite GPE demonstrates outstanding electrochemical performance, achieving a high ionic conductivity of 0.7 × 10–3 S cm–1 at 30 °C and stable cycling for over 1000 h in Li/Li symmetric cells and more than 300 cycles in Li/LiFePO4 cells, along with excellent rate capabilities. This work provides a comprehensive strategy for addressing the critical limitations of LMBs and establishes a robust framework for developing next-generation high-performance solid-state battery systems.

  • Localized High-Concentration Binary Salt Electrolytes with Suppressed Li<sub>2</sub>S<sub> <i>x</i> </sub> Solubility to Achieve Stable Li-S Pouch Cells with High Sulfur-Loading Cathodes under Lean Electrolyte Conditions

    Liu, JL; Ghosh, A; Kondou, S; Li, SL; Ueno, K; Dokko, K; Watanabe, M

    ACS APPLIED ENERGY MATERIALS   8 ( 3 )   1570 - 1579   2025.1

    DOI Web of Science

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    Language:The in addition, foreign language   Publishing type:Research paper (scientific journal)   Joint Work  

  • Stay Hungry, Stay Foolish

    WATANABE Masayoshi

    Denki Kagaku   92 ( 4 )   358 - 360   2024.12

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Electrochemical Society of Japan   Single Work  

  • Poly(ionic liquid) electrolytes at an extreme salt concentration for solid-state batteries

    Shinji Kondou, Mohanad Abdullah, Ivan Popov, Murillo Martins, Luke O'Dell, Hiroyuki Ueda, Faezeh Ma … Show more authors

    J. Am. Chem. Soc.   146   33169 - 33178   2024.11  [Reviewed]

    DOI

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

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Review Papers 【 display / non-display

  • ソフトマター電解質の研究と次世代電池

    渡邉正義

    電池技術   36   120 - 129   2024.10

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • 正極不溶型リチウム-硫黄電池

    渡邉正義

    金属   94   414 - 423   2024.5

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • 興味の糸を紡いで独自の領域に~しかし川の流れのように~

    渡邉正義

    イオン液体研究会サーキュラー   18   1 - 18   2022.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Single Work  

  • 溶融Li塩溶媒和物のLiイオン溶媒和とイオン輸送特性

    上野 和英、獨古 薫、渡邉 正義

    溶融塩および高温化学   65 ( 1 )   19 - 24   2022

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Joint Work  

  • 正極活物質難溶性電解液を用いたLi-S電池への多角的アプローチ

    渡邉正義

    工業材料   70 ( 3 )   14 - 19   2022

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Single Work  

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Industrial Property Rights 【 display / non-display

  • 二次電池

    渡邉 正義,渡辺 桂矢,加藤 めぐみ,トーマス モーガン レスリー,亀井 優太朗,獨古 薫,渡辺 健太

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    Application no:2017-555010  Date applied:2016.11.22

    Publication no:WO2017/098918  Date published:2017.6.15

    Patent/Registration no:6315644  Date issued:2018.4.6

    Country of applicant:Domestic  

  • リチウム硫黄電池のカソード材料、およびリチウム硫黄電池

    渡邉 正義,獨古 薫,李 テツ,張 世国

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    Application no:2016-556540  Date applied:2015.10.23

    Publication no:WO2016/068043  Date published:2016.5.6

    Patent/Registration no:6270004  Date issued:2018.1.12

    Country of applicant:Domestic  

  • アルカリ金属-硫黄系二次電池

    渡邉 正義,獨古 薫,立川 直樹,朴 俊佑,高嶋 絵里子,山内 健人

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    Application no:2015-143062  Date applied:2015.7.17

    Announcement no:2015-216124  Date announced:2015.12.3

    Patent/Registration no:6004506  Date issued:2016.9.16

    Country of applicant:Domestic  

  • 二次電池

    竹川 寿弘,渡邉 正義,獨古 薫

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    Application no:2014-204938  Date applied:2014.10.3

    Announcement no:2016-076348  Date announced:2016.5.12

    Patent/Registration no:6480140  Date issued:2019.2.15

    Country of applicant:Domestic  

  • イオン液体、潤滑剤及び磁気記録媒体

    近藤 洋文、初田 弘毅、伊藤 牧八、多納 信郎、ユン キョンソン、渡邉 正義

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    Application no:2014-126337  Date applied:2014.6.19

    Announcement no:2016-003328  Date announced:2016.1.12

    Patent/Registration no:6305845  Date issued:2018.3.16

    Country of applicant:Domestic  

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Awards 【 display / non-display

  • 電気化学会名誉会員

    2024.3   (公社)電気化学会  

    Individual or group name of awards:渡邉正義

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    本会の目的に関し顕著な功労のあった個人会員で、理事会で予め本人の意向を確認の上で推薦し、総会において承認された者

  • 向井賞

    2022.5   公益財団法人 東京応化科学技術振興財団  

    Individual or group name of awards:渡邉正義

  • 紫綬褒章

    2022.4   内閣府  

    Individual or group name of awards:渡邉正義

  • 高分子科学功績賞

    2021.5   公益社団法人 高分子学会  

    Individual or group name of awards:渡邉正義

  • 日本化学会賞

    2021.3   公益社団法人 日本化学会  

    Individual or group name of awards:渡邉正義

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

  • ソフトマター電解質が可能にする新しいエネルギー貯蔵・変換系の構築

    2023 - 2025

    Fostering Joint International Research (B)

    Investigator(s):渡邉正義

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    Authorship:Principal investigator  Grant type:Competitive

  • ソフトマテリアルの自律性を支配するイオン液体の役割

    2015.4 - 2020.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(S)

    Investigator(s):渡邉 正義

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    Grant type:Competitive

  • イオントロニクス学理の構築

    2013.4 - 2020.3

    科学研究費補助金  Grant-in-Aid for Specially Promoted Research

    Investigator(s):岩佐 義宏

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    Grant type:Competitive

  • イオン液体を用いたソフトマテリアルの創成

    2011.4 - 2014.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(A)

    Investigator(s):渡邉 正義

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    Grant type:Competitive

  • イオン液体と高分子のハイブリッド化による新規機能材料の創製

    2008.4 - 2011.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(B)

    Investigator(s):渡邉 正義

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    Grant type:Competitive

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Presentations 【 display / non-display

  • ソフトマター電解質が拓く次世代電池

    渡邉正義  [Invited]

    日本化学会第105春季大会(CIPシンポジウム:電解液の革新に基づく新電池開発)  2024.3  (公社)日本化学会

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    Event date: 2025.3

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Venue:関西大学、吹田、大阪   Country:Japan  

  • 千里の道も一歩から:ポリマーネットワーク・ガラス転移・そしてイオン液体

    渡邉正義  [Invited]

    Gel Symposium 2024  2024.11  (公社)高分子学会 高分子ゲル研究会

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    Event date: 2024.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:万国津梁館、沖縄   Country:Japan  

  • イオン液体:この面白い物質に出会って

    渡邉正義  [Invited]

    第14回イオン液体討論会  2024.11  イオン液体研究会

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    Event date: 2024.11

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Venue:郡山、福島   Country:Japan  

  • Linear ether-based highly concentrated electrolytes for Li-sulfur batteries

    Toru Ishikawa, Shohei Haga, Keisuke Shigenobu, Taku Sudoh, Seiji Tsuzuki, Wataru Shinoda, Kaoru Dokko, Masayoshi Watanabe, Kazuhide Ueno  [Invited]

    Faraday Discussion on Dense Ionic Fluids (Organizer)  2024.7  The Royal Society of Chemistry

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    Event date: 2024.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:London, UK   Country:United Kingdom  

  • Polymer-in-Salt Electrolyte: Decoupling of Ionic Motion from Polymer Segmental Motion

    Masayoshi Watanabe  [Invited]

    The 18th International Symposium on Polymer Electrolytes  2024.6  ISPE-18 Organizing Committee

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    Event date: 2024.6

    Language:English   Presentation type:Oral presentation (keynote)  

    Venue:Langkawi, Malaysia   Country:Malaysia  

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Past of Collaboration and Commissioned Research 【 display / non-display

  • Basic Studies of Novel, High Rate Li and Li Ion Batteries for Application to Large Scale Batteries

    International Cooperative Research  

    Project Year: 1998  -  2001 

  • Research of New Ion-Conducting Polymers

    Funded Research offered by Enterprises  

    Project Year: 1995  -   

 

Committee Memberships 【 display / non-display

  • 科学技術振興機構(JST)

    2023  ALCA-Next:先端的カーボンニュートラル技術開発「エネルギー変換・畜エネルギー」「資源循環」領域 プログラムオフィサー

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    Committee type:Government 

  • 科学技術振興機構(JST)

    2023  GteX:革新的GX技術創出事業「蓄電池」領域

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    Committee type:Government 

  • 科学技術振興機構(JST)

    2020  さきがけ「自在配列」領域

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    Committee type:Government 

  • 内閣府 革新的研究開発プログラム(ImPACT)、終了時評価のプログラム評価委員会

    2019.1 - 2019.3  外部専門家

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    Committee type:Government 

    内閣府 革新的研究開発プログラム(ImPACT)、終了時評価のプログラム評価委員会に係る外部専門家、2019.1.23~2019.3.31

  • 日本学術振興会 科学研究費委員会

    2019 - 2020  専門委員

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    Committee type:Other 

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Social Contribution(Extension lecture) 【 display / non-display

  • JST-ALCA特別重点技術領域(次世代二次電池)「次世代性能リチウム硫黄電池の開発」チームミーティング

    JST東京本部別館、市ヶ谷、東京  2014.3

  • 神奈川県ものづくり技術交流会、大学/産業技術センター連携企画 横浜国立大学グリーンマテリアルイノベーション研究拠点「2013-2 クリーンエネルギー材料研究フォーラム」

    県産業技術センター、海老名、神奈川県  2013.10

  • 横浜国立大学グリーンマテリアルイノベーション研究拠点:2013-01クリーンエネルギー材料産官学研究会

    横浜国立大学教育文化ホール、横浜  2013.7

  • 横浜市産学連携フォーラム「横浜リエゾンポート 2003」

    横浜市 他  横浜市  2003.7

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    Type:Lecture

    ゲル関係の研究を口頭およびポスターで発表した。横浜市における理工系大学の成果を民間に紹介し、産学連携を図るのが目的で、中田宏市長も出席され、この重要性を強調していた。

  • 技術者にとってのリテラシー

    2002.10

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