Updated on 2025/01/25

写真a

 
MAE, Tomotaro
 
Affiliation
Faculty of Science and Engineering, School of Advanced Science and Engineering
Job title
Assistant Professor(non-tenure-track)
Degree
博士（工学） ( 2024.03 早稲田大学 )

Research Experience

  • 2024.04
    -
    Now

    早稲田大学 理工学術院 講師（任期付き）

  • 2024.07
    -
    2024.09

    King's College London   Department of Engineering, Faculty of Natural, Mathematical & Engineering Sciences   Visiting Research Associate

Education Background

  • 2021.04
    -
    2024.03

    早稲田大学 先進理工学研究科 応用化学専攻  

  • 2019.04
    -
    2021.03

    早稲田大学 先進理工学研究科 応用化学専攻  

  • 2015.04
    -
    2019.03

    早稲田大学 先進理工学部 応用化学科  

Professional Memberships

  • 　
    　
    　

    フラーレン・ナノチューブ・グラフェン学会

  • 　
    　
    　

    Materials Research Society

  • 　
    　
    　

    化学工学会

Research Areas

  • Chemical reaction and process system engineering / Structural materials and functional materials

Awards

  • 里見賞（入賞）

    2024.10   公益財団法人里見奨学会   新規方法論によるカーボンナノチューブベースリチウム二次電池の開発と環境影響評価

  • 水野賞

    2024.03   早稲田大学   Development and green-house gas emission assessment of Li secondary battery using silicon monoxide-carbon nanotube self-supporting film anode

 

Papers

  • Environmentally Friendly Regeneration of Graphite from Spent Lithium-Ion Batteries for Sustainable Anode Material Reuse

    Subramanian Natarajan, Tomotaro Mae, Heng Yi Teah, Hiroki Sakurai, Suguru Noda

    Journal of Materials Chemistry A    2025

    　View Summary

    The graphite industry is currently facing significant supply and demand issues owing to the sudden rise in electric vehicle (EV) usage; however, the lithium-ion batteries (LIB) that power such vehicles...

    DOI

  • A stable full cell having high energy density realized by using a three-dimensional current collector of carbon nanotubes and partial prelithiation of silicon monoxide

    Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda

    Carbon   218   118663 - 118663  2024.01  [Refereed]

    Authorship：Lead author

    　View Summary

    The prelithiation of SiO-based negative electrodes is essential for stable and high-energy-density Li secondary batteries. In this study, a new partial prelithiation method by two-stack electrodes was developed using lightweight and high-capacity carbon-coated silicon monoxide (SiO/C) films held in a sponge-like matrix of carbon nanotubes (CNTs). The charge-discharge cycles of a full cell with the partially prelithiated SiO/C-CNT negative electrode (p-LixSiO/C-CNT with SiO/C content of 85 mass%) and LiNi0.8Mn0.1Co0.1O2 (NCM811)-CNT positive electrode (NCM content of 97 mass%) reduced the irreversible capacity, achieving high energy densities per the total mass of the negative and positive electrodes of 542 and 420 W h kgelectrode−1 at the 1st and 300th cycle, respectively, with high areal capacities of 4.6 and 3.1 mA h cm−2 for the negative and positive electrodes. The flexible CNT sponge matrix expanded/shrunk reversibly during lithiation/delithiation and retained its structure, whereas the thin Li metal formed Li dendrites and dead Li after cycling, as demonstrated by scanning electron microscopy. The partial prelithiation method of simply stacking the pristine SiO/C-CNT film with a fully prelithiated film enables the careful control of the degree of prelithiation, contributing to full cells of various chemistries.

    DOI

    Scopus

    3
    Citation
    (Scopus)

  • Stable and high-capacity SiO negative electrode held in reversibly deformable sponge-like matrix of carbon nanotubes

    Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    Carbon   209   118014 - 118014  2023.06  [Refereed]

    Authorship：Lead author

    　View Summary

    A lightweight, high-capacity negative electrode was developed by suspending carbon-coated silicon monoxide (SiO/C) particles in a sponge-like matrix of carbon nanotubes (CNTs) without using metal foils or polymeric binders. High initial delithiation capacities per electrode (SiO/C + CNT) of >1200 mA h gelectrode−1 and >1100 mA h cmelectrode−3 were achieved with an optimum SiO/C content of 85 mass%. The lithiation/delithiation cycle with capacity control at a 45% SiO utilization ratio achieved a high delithiation capacity of 584 mA h gelectrode−1 for 236 cycles. In addition, the flexible and electrically conductive CNT sponge matrix enabled reversible expansion/shrinkage of the entire electrode during lithiation/delithiation, as evidenced by scanning electron microscopy.

    DOI

    Scopus

    3
    Citation
    (Scopus)

  • High-energy-density Li–S battery with positive electrode of lithium polysulfides held by carbon nanotube sponge

    Yuichi Yoshie, Keisuke Hori, Tomotaro Mae, Suguru Noda

    Carbon   182   32 - 41  2021.09  [Refereed]

    　View Summary

    Lithium-sulfur battery suffers from the low utilization of sulfur and the high electrolyte/sulfur (E/S) ratio that decrease the cell-based performance. Lithium polysulfides (Li2Sx)-dissolved electrolyte, so called catholyte, enables high utilization of sulfur, but the cell inherently has high E/S ratio due to the limited solubility of Li2Sx. Herein, a composite electrode of Li2Sx (x = 4, 6, 8) and sub-millimeter-long few-wall carbon nanotube (CNT) is proposed. The CNT forms self-supporting sponge-like paper and works as a three-dimensional current collector, in which the Li2Sx is deposited by solution casting and drying. The Li2S6-CNT electrode realizes high specific capacity (1249 mAh gsulfur−1) under a lean electrolyte condition of E/S = 4 μL mgsulfur−1, which is much better than the S8-CNT electrode (233 mAh gsulfur−1). After full charge and conversion of Li2Sx to S, the Li2Sx-CNT electrode maintains its high capacity of 1100 mAh gsulfur−1. The full cell with the Li2S6-CNT and the Li thin foil electrodes realizes 400–500 Wh kgcell−1 for E/S = 4.0 at the 2nd and 3rd discharge and 300 Wh kgcell−1 for E/S = 5.8 at the 97th discharge, based on the total mass of the interior of a cell (electrodes, separator, and electrolyte). Holding solvated Li2Sx by the CNT sponge is the key for the high energy density.

    DOI

    Scopus

    25
    Citation
    (Scopus)

Presentations

  • 新規部分プレリチオ化法およびカーボンナノチューブ三次元集電体を用いたSiO-NCM全電池の開発

    前 智太郎, 野田 優

    第65回電池討論会 

    Presentation date： 2024.11

  • Proper electrolytes and conditions for prelithiation of SiO-carbon nanotube sponge anode for lithium-ion batteries

    Ben Huang, Tomotaro Mae, Suguru Noda

    14th A3 Symposium on Emerging Materials: Nanomaterials for Electronics, Energy, and Environment 

    Presentation date： 2024.10

  • High-temperature operating Li secondary battery realized using CNT current collector, BNNT separator, and ionic liquid electrolyte

    Masaya Kawaguchi, Kentaro Kaneko, Tomotaro Mae, Suguru Noda

    第67回フラーレン・ナノチューブ・グラフェン総合シンポジウム 

    Presentation date： 2024.09

  • Proper electrolytes and reaction conditions for prelithiation of SiO-carbon nanotube sponge anode for lithium-ion batteries

    Ben Huang, Tomotaro Mae, Suguru Noda

    The 24th International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT24) 

    Presentation date： 2024.06

  • カーボンナノチューブ三次元集電体を用いたSiO-NCM全電池の開発と製造に伴う環境影響の評価

    前 智太郎, Teah Heng Yi, 平尾 雅彦, 野田 優

    化学工学会第89年会 

    Presentation date： 2024.03

  • Proper Electrolytes for Pre-Lithiation of SiO-Carbon Nanotube Sponge Anode for Lithium-Ion Batteries

    黄 奔, 前 智太郎, 野田 優

    第64回電池討論会 

    Presentation date： 2023.11

  • 多硫化リチウムと混合支持塩を用いたLi-S電池のエネルギー密度向上と安定動作

    中前 快斗, 前 智太郎, 野田 優

    第64回電池討論会 

    Presentation date： 2023.11

  • Recycling of spent anode for Li-ion battery recycling and its life cycle analysis

    Subramanian Natarajan, Tomotaro Mae, Heng Yi Teah, Hiroki Sakurai, Suguru Noda

    7th International Conference on Advanced Electromaterials (ICAE 2023) 

    Presentation date： 2023.10

  • カーボンナノチューブ三次元集電体と部分プレリチオ化によるSiO-NCM全電池の高容量安定動作

    前 智太郎, 金子 健太郎, 桜井 宏樹, 野田 優

    化学工学会第54回秋季大会 

    Presentation date： 2023.09

  • Multi-functional carbon nanotube sponge-like paper that holds lithium polysulfide and supporting salts for simple fabrication of stable and high energy-density Li-S battery

    Kaito Nakamae, Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    he 23rd International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT23) 

    Presentation date： 2023.06

  • Stable, high energy-density SiO-NCM full cell based on three dimensional current collector of carbon nanotubes and partial prelithiation method

    Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda

    he 23rd International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT23) 

    Presentation date： 2023.06

  • High energy density Li-S battery with active materials and salts held by carbon nanotube paper

    Kaito Nakamae, Yuichi Yoshie, Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    第64回フラーレン・ナノチューブ・グラフェン総合シンポジウム 

    Presentation date： 2023.03

  • 簡易プロセスによる使用済みリチウムイオン電池正極材の再生技術

    桜井 宏樹, 金子 健太郎, 前 智太郎, Natarajan Subramanan, 所 千晴, 野田 優

    化学工学会第88年会 

    Presentation date： 2023.03

  • Stable and high-capacity SiO negative electrode held in reversibly deformable sponge-like matrix of carbon nanotubes

    Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    第64回フラーレン・ナノチューブ・グラフェン総合シンポジウ 

    Presentation date： 2023.03

  • Self-supporting negative electrode of silicon monoxide held by carbon nanotubes for stable and high-capacity secondary batteries

    Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    2022 MRS Fall Meeting & Exhibit, Boston & Virtual 

    Presentation date： 2022.12

  • カーボンナノチューブ膜への活物質と塩の担持による高エネルギー密度Li-S電池の開発

    中前 快斗, 吉江 優一, 前 智太郎, 金子 健太郎, 李 墨宸, 野田 優

    第63回電池討論会 

    Presentation date： 2022.11

  • 安定・高容量二次電池に向けた一酸化ケイ素・カーボンナノチューブ自立膜負極の開発

    前 智太郎, 金子 健太郎, 李 墨宸, 野田 優

    第63回電池討論会 

    Presentation date： 2022.11

  • 多硫化リチウムと混合支持塩を用いたLi-S電池のエネルギー密度向上と安定動作

    中前 快斗, 前 智太郎, 金子 健太郎, 李 墨宸, 野田 優

    化学工学会第53回秋季大会 

    Presentation date： 2022.09

  • Greener production of carbon nanotubes and battery applications

    Suguru Noda, Heng Yi, Mochen Li, Kentaro Kaneko, Yuichi Yoshie, Tomotaro Mae

    19th Asian Pacific Confederation of Chemical Engineering Congress (APCChE 2022) 

    Presentation date： 2022.08

  • High energy density Li-S battery with active materials and salts held by carbon nanotube paper

    Kaito Nakamae, Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT22) 

    Presentation date： 2022.06

  • Self-supporting negative electrode of silicon monoxide held by carbon nanotubes for stable and high-capacity secondary batteries

    Tomotaro Mae, Kentaro Kaneko, Mochen Li, Suguru Noda

    International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT22) 

    Presentation date： 2022.06

  • カーボンナノチューブ膜への活物質と塩の担持による高エネルギー密度Li-S電池の開発

    中前 快斗, 吉江 優一, 前 智太郎, 金子 健太郎, 李 墨宸, 野田 優

    化学工学会第87年会 

    Presentation date： 2022.03

  • 安定・高容量二次電池に向けた一酸化ケイ素・カーボンナノチューブ自立膜負極の開発

    前 智太郎, 金子 健太郎, 李 墨宸, 野田 優

    化学工学会第87年会 

    Presentation date： 2022.03

  • LixSi-CNT負極の部分脱リチオ化によるリチウム二次電池の長寿命化

    若生 朋也, 吉江 優一, 前 智太郎, 金子 健太郎, 野田 優

    化学工学会第86年会 

    Presentation date： 2021.03

  • ニッケル系酸化物粒子をカーボンナノチューブで保持したリチウムイオン電池正極の開発

    桜井 宏樹, 前 智太郎, 金子 健太郎, 野田 優

    化学工学会第86年会 

    Presentation date： 2021.03

  • Thin Li-Metal Negative Electrode Held in Self-Supporting Paper of Carbon Nanotubes for Stable, High Energy Density Rechargeable Batteries

    Tomotaro Mae, Keisuke Hori, Yuki Yamada, Suguru Noda

    Presentation date： 2020.12

  • 炭素粒子・ナノチューブ複合自立膜を用いた金属Li薄膜二次電池負極の開発と安定動作

    山本 直輝, 前 智太郎, 堀 圭佑, 山田 裕貴, 野田 優

    化学工学会第85年会 

    Presentation date： 2020.03

  • 高エネルギー密度二次電池に向けたカーボンナノチューブ保持金属Li薄膜負極の開発

    前 智太郎, 堀 圭佑, 山田 裕貴, 野田 優

    化学工学会第85年会 

    Presentation date： 2020.03

  • カーボンナノチューブを用いた核発生制御による二次電池用リチウム金属負極の開発

    前 智太郎, 堀 圭佑, 橋爪 裕太, 野田 優

    化学工学会第84年会 

    Presentation date： 2019.03

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Research Projects

  • カーボンナノチューブ三次元集電体を用いた高エネルギー密度リチウム二次電池の開発

    国立研究開発法人 科学技術振興機構（JST） 

    Project Year :

    2021.10
    -
    2024.03
     

Industrial Property Rights

 

Syllabus

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Teaching Experience

  • 理工学基礎実験１Ｂ

    早稲田大学  

    2024.04
    -
    Now
     

  • 応用化学基礎演習Ｄ

    早稲田大学  

    2024.04
    -
    Now
     

  • 応用化学基礎演習Ｂ

    早稲田大学  

    2024.04
    -
    Now
     

  • マテリアルデザイン科学ジョイントセミナー

    早稲田大学大学院  

    2024.04
    -
    Now
     

  • ナノスケール科学ジョイントセミナー

    早稲田大学大学院  

    2024.04
    -
    Now
     

  • 応用化学総論

    早稲田大学  

    2024.04
    -
    Now
     

  • 理工学基礎実験１Ａ

    早稲田大学  

    2024.04
    -
    Now
     

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