2022/12/09 更新

写真a

トガサキ ノリヒロ
戸ヶ崎 徳大
Scopus 論文情報  
論文数: 0  Citation: 0  h-index: 7

Citation Countは当該年に発表した論文の被引用数

所属
研究院(研究機関) ナノ・ライフ創新研究機構
職名
主任研究員(研究院准教授)

学歴

  • 2012年09月
    -
    2016年03月

    早稲田大学   先進理工学研究科   ナノ理工学専攻  

  • 2003年04月
    -
    2005年03月

    早稲田大学   理工学研究科   応用化学専攻  

  • 1999年04月
    -
    2003年03月

    早稲田大学   理工学部   応用化学科  

学位

  • 早稲田大学 先進理工学研究科 ナノ理工学専攻   将来型リチウム空気電池のための金属リチウム負極の開発

経歴

  • 2022年10月
    -
    継続中

    早稲田大学   ナノ・ライフ創新研究機構   主任研究員   研究院准教授

  • 2017年10月
    -
    2022年09月

    早稲田大学   ナノ・ライフ創新研究機構   次席研究員(研究院講師)

  • 2017年04月
    -
    2017年09月

    早稲田大学   ナノ・ライフ創新研究機構   研究補助者

  • 2014年04月
    -
    2017年03月

    早稲田大学   先進理工学部 応用化学科   助手

  • 2012年06月
    -
    2012年09月

    早稲田大学   理工学研究所   嘱託

  • 2005年04月
    -
    2012年05月

    株式会社東芝セミコンダクター社

  • 2005年04月
    -
    2012年05月

    株式会社東芝セミコンダクター社

▼全件表示

 

研究分野

  • 電子デバイス、電子機器

  • エネルギー化学

論文

  • Degradation Behavior of Graphite-Nickel Cobalt Aluminum Oxide Lithium Ion Cells with Series Connections Including an Overcharged Cell

    Norihiro Togasaki, Tokihiko Yokoshima, Tetsuya Osaka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   169 ( 3 )  2022年03月  [査読有り]

    担当区分:筆頭著者, 責任著者

     概要を見る

    Cycle life of series-connected lithium-ion battery (LIB) modules in the presence or absence of an overcharged cell is reported, and degradation behavior is characterized by electrochemical impedance spectroscopy (EIS) and differential voltage analysis (DVA). Three-stage capacity decay is solely observed in modules in the presence of an overcharged cell, which is exposed to a state of charge (SoC) of >= 105% during cycling. The module without overcharged cells or with an overcharged cell at an SoC of <103% exhibits capacity decay as a function of the square root of cycle numbers. EIS and DVA analyses confirmed that the overcharged cell with an SoC of >= 105% in the module deteriorates more harshly than the other cells and that deterioration occurs especially at the cathode. Cycle dependence of the charge/discharge cutoff voltage of LIBs revealed that the cell capacity of the overcharged cell shrinks with the end point on charge as a fulcrum, thereby decreasing the lower cutoff voltage as cycling progresses. Such a voltage change of an overcharged cell directly affects module capacity, leading to three-stage capacity decay. This study reveals a potential risk in series-connected cells using a wide SoC range and provides critical insights for safe operation without balance circuits.

    DOI

    Scopus

  • 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年07月  [査読有り]

    担当区分:筆頭著者, 責任著者

     概要を見る

    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

    Scopus

    2
    被引用数
    (Scopus)
  • 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   12 ( 4 ) 415 - 423  2021年05月  [査読有り]

    担当区分:筆頭著者, 責任著者

     概要を見る

    For a battery module where single cells are connected in series, the single cells should each have a similar state of charge (SOC) to prevent them from being exposed to an overcharge or over-discharge during charge-discharge cycling. To detect the existence of unbalanced SOC cells in a battery module, we propose a simple measurement method using a single-frequency response of electrochemical impedance spectroscopy (EIS). For a commercially available graphite/nickel-cobaltaluminum-oxide lithium-ion cell, the cell impedance increases significantly below SOC20%, while the impedance in the medium SOC region (SOC20%-SOC80%) remains low with only minor changes. This impedance behavior is mostly due to the elementary processes of cathode reactions in the cell. Among the impedance values (Z, Z', Z ''), the imaginary component of Z '' regarding cathode reactions changes heavily as a function of SOC, in particular, when the EIS measurement is performed around 0.1 Hz. Thanks to the significant difference in the time constant of cathode reactions between <= SOC10% and >= SOC20%, a single-frequency EIS measurement enlarges the difference in impedance between balanced and unbalanced cells in the module and facilitates an similar to 80% improvement in the detection signal compared to results with conventional EIS measurements.

    DOI

  • 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年06月  [査読有り]

     概要を見る

    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

    Scopus

    11
    被引用数
    (Scopus)
  • 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年06月  [査読有り]

    担当区分:筆頭著者, 責任著者

     概要を見る

    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

    Scopus

    31
    被引用数
    (Scopus)
  • 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年10月  [査読有り]

    担当区分:筆頭著者, 責任著者

     概要を見る

    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

    Scopus

    1
    被引用数
    (Scopus)
  • Prevention of redox shuttle using electropolymerized polypyrrole film in a lithium-oxygen battery

    Norihiro Togasaki, Ryuji Shibamura, Takuya Naruse, Toshiyuki Momma, Tetsuya Osaka

    APL MATERIALS   6 ( 4 ) 047704 - 047711  2018年04月  [査読有り]

    担当区分:筆頭著者

     概要を見る

    Among the recent advancements in lithium-oxygen (Li-O-2) chemistries, redox mediators (RMs) have been revealed to play a significant role in decreasing overpotential on charging and in improving cycling performance. However, an intrinsic problem is redox shuttle of RMs, which leads to degraded RM utilization and induces the accumulation of discharge products on the cathode surface; this remains a significant issue in the current battery cell configuration (Li anode/separator/cathode). To address this detrimental problem, herein we propose a novel Li-O-2 cell incorporating a freestanding electropolymerized polypyrrole (PPy) film for the restriction of the redox-shuttle phenomenon of lithium iodide (Li anode/separator/PPy film/cathode). In this study, a PPy film, which is prepared through oxidative electropolymerization using an ionic liquid of 1-methyl-1-butylpyrrolidinium mixed with pyrrole and lithium bis(trifluoromethanesulfonyl) imide, is introduced between the cathode and the separator. From the charge-discharge voltage profile, it is confirmed that the PPy film suppresses the diffusion of the oxidized I-3(-) to the Li anode, while allowing Li ion transport. Secondary scanning electron microscope measurements confirm that the chemical reactions between I-3(-) and Li2O2 are facilitated by the presence of the PPy film because I-3(-) remains near the cathode surface during the charging process. As a result, the cycling performance in the Li-O-2 cells with PPy film exhibits a cycling life four times as long as that of the Li-O-2 cells without PPy film. (C) 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.

    DOI

    Scopus

    16
    被引用数
    (Scopus)
  • A Comparative Study of LiNO3 and LiTFSI for the Cycling Performance of δ-MnO2 Cathode in Lithium−Oxygen Batteries

    Norihiro Togasaki, Tadayoshi Gobara, Toshiyuki Momma, Tetsuya Osaka, Tomoko Numata

    Journal of The Electrochemical Society   164 ( 9 ) A2225 - A2230  2017年  [査読有り]

    担当区分:筆頭著者

    DOI

    Scopus

    9
    被引用数
    (Scopus)
  • Enhanced cycling performance of a Li metal anode in a dimethylsulfoxide-based electrolyte using highly concentrated lithium salt for a lithium-oxygen battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    JOURNAL OF POWER SOURCES   307   98 - 104  2016年03月  [査読有り]

    担当区分:筆頭著者

     概要を見る

    Stable charge-discharge cycling behavior for a lithium metal anode in a dimethylsulfoxide (DMSO)-based electrolyte is strongly desired of lithium-oxygen batteries, because the Li anode is rapidly exhausted as a result of side reactions during cycling in the DMSO solution. Herein, we report a novel electrolyte design for enhancing the cycling performance of Li anodes by using a highly concentrated DMSO-based electrolyte with a specific Li salt. Lithium nitrate (LiNO3), which forms an inorganic compound (Li2O) instead of a soluble product (Li2S) on a lithium surface, exhibits a >20% higher coulombic efficiency than lithium bis(trifluoromethanesulfonyl)imide, lithium bis(fluorosulfonyl)imide, and lithium perchlorate, regardless of the loading current density. Moreover, the stable cycling of Li anodes in DMSO-based electrolytes depends critically on the salt concentration. The highly concentrated electrolyte 4.0 M LiNO3/DMSO displays enhanced and stable cycling performance comparable to that of carbonate -based electrolytes, which had not previously been achieved. We suppose this enhancement is due to the absence of free DMSO solvent in the electrolyte and the promotion of the desolvation of Li ions on the solid electrolyte interphase surface, both being consequences of the unique structure of the electrolyte. (C) 2015 Elsevier B.V. All rights reserved.

    DOI

    Scopus

    58
    被引用数
    (Scopus)
  • 将来型リチウム空気電池のための金属リチウム負極の開発

    戸ヶ崎徳大

       2016年02月  [査読有り]

    担当区分:筆頭著者

  • Role of the solid electrolyte interphase on a Li metal anode in a dimethylsulfoxide-based electrolyte for a lithium-oxygen battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    JOURNAL OF POWER SOURCES   294   588 - 592  2015年10月  [査読有り]

    担当区分:筆頭著者

     概要を見る

    The effect of the solid electrolyte interphase (SEI) on a Li anode on the charge-discharge cycling performance in 1 M LiTFSI/dimethylsulfoxide electrolyte solution is examined by using charge-discharge cycling. The chemical structure of the surface and interior of the SEI strongly affects the cycling performance of the anode. The observed coulombic efficiency is low (<45%) when organic compounds such as lithium alkyl carbonates and polycarbonate form predominantly on the surface and interior. However, when inorganic compounds such as Li2CO3, Li2O, and LiF form instead, the coulombic efficiency increases to >85%. This enhanced efficiency remains constant regardless of the O-2 content and despite <1000 ppm concentration of the contaminant H2O in the electrolyte. Thus, the lithium surface should be protected by inorganic compounds prior to cycling to prevent it from undergoing side reactions with the electrolyte during cycling in the electrolyte. (C) 2015 Elsevier B.V. All rights reserved.

    DOI

    Scopus

    28
    被引用数
    (Scopus)
  • Enhancement effect of trace H2O on the charge discharge cycling performance of a Li metal anode

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    JOURNAL OF POWER SOURCES   261   23 - 27  2014年09月  [査読有り]

    担当区分:筆頭著者

     概要を見る

    The effects of a small amount of H2O with and without CO2 in an electrolyte of I M LiPF6/ethylene carbonate and diethyl carbonate on the cycling life of a Li metal anode is investigated in this paper using charge discharge cycling. A low cycling performance, which is less than 55%, is observed with the electrolyte with trace H2O but without CO2; however, when the trace H2O is accompanied by CO2, performance drastically improves and coulombic efficiency reaches a maximum of 88.9%. In the presence of CO2, the cycling performance is found to be strongly affected by the H2O content in the electrolyte, and increases with an increase in H2O content of up to 35 ppm. From an X-ray photoelectron spectroscopy analysis, trace H2O is found to affect the compounds of the solid electrolyte interphase (SEI) on the lithium surface and produces an Li2CO3 and LW layer on the upper part of the SEI, both known to be good passivation layers for preventing side reactions during charge discharge cycling. (c) 2014 Elsevier B.V. All rights reserved.

    DOI

    Scopus

    27
    被引用数
    (Scopus)
  • Development of DAF (Die Attach Film) with functional gettering agent for metal impurities

    Shinya Takyu, Norihiro Togasaki, Tetsuya Kurosawa, Yuji Yamada, Makiko Tamaoki, Hidekazu Hayashi, Hiroshi Tomita

    2012 2ND IEEE CPMT SYMPOSIUM JAPAN    2012年  [査読有り]

     概要を見る

    Gettering effect which is to trap metal ions on the dangling-bonds located far from the device area is widely known as an inhibition way of this problem. Extrinsic Gettering (EG) method that is formed during back side grinding in the wafer thinning process is one of the most significant technologies considering of reducing cost. However the chip strength has been decreased with increasing the roughness derived from crystal defect. Under these circumstances, we focused on the DAF (Die Attach Film) which is commonly used as an adhesive sheet to stack thin chips and attempted to add a functional gettering agent in this film.We selected Inorganic Ion-Exchange materials as a gettering agent and prepared some samples which have Oxidized Sb for gettering agent. From the result based on this study, the main factor determining gettering effect is an amount of substance of Ion-Exchange materials in the DAF. It's also estimated the quantity of Cu ion adsorption was about 33 similar to 50% in the whole of trapped Cu ions in the DAF. And we obtained 38 % Cu ions were adsorbed in the DAF with 10um thickness, which is about 68 % compared to the value from #2000.

    DOI

    Scopus

  • Preparation and characterization of electroplated amorphous gold-nickel alloy film for electrical contact applications

    Norihiro Togasaki, Yutaka Okinaka, Takayuki Homma, Tetsuya Osaka

    Electrochimica Acta   51 ( 5 ) 882 - 887  2005年11月  [査読有り]

    担当区分:筆頭著者

     概要を見る

    A process for electroplating amorphous gold-nickel alloy with the atomic ratio of unity was developed. The plating bath was prepared by adding potassium cyanoaurate(I) into a known plating bath which produces amorphous nickel-tungsten alloy. At a sufficiently high gold concentration, the alloy deposit did not contain any tungsten. The amorphous nature of the Au-Ni alloy produced in the new bath was confirmed by using TEM and THEED. Hardness, resistivity, and contact resistance of this new alloy were determined, and the results are discussed for applications as an electrical contact material. © 2005 Elsevier Ltd. All rights reserved.

    DOI

    Scopus

    32
    被引用数
    (Scopus)
  • 電気接点材料への応用を目的とするアモルファス金合金めっき膜の作製と評価

    戸ヶ崎 徳大

       2005年03月  [査読有り]

    担当区分:筆頭著者

  • 硬質金めっき膜における微結晶と硬度の相関性

    戸ヶ崎 徳大

       2003年03月  [査読有り]

    担当区分:筆頭著者

▼全件表示

Misc

  • Electrochemical Impedance Spectroscopy with Discrete Transmission Line Model and Electric Circuit Simulation for Current Distribution in Electrode of All Solid–State Battery

    Hiroki Nara, Norihiro Togasaki, Terumi Furuta, Ushio Harada, Tomohiro Kaburagi, Hirofumi Yasuda, Tetsuya Osaka

    ECS Meeting Abstracts    2021年10月

    DOI

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

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

    ECS Meeting Abstracts   {MA}2020-02 ( 2 ) 393 - 393  2020年11月

    DOI

  • 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

    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年

    J-GLOBAL

  • 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

    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年

    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年

    J-GLOBAL

  • 無電解Ni-P/Auめっき膜を用いた狭パッドピッチワイヤボンディング技術開発 (MEMS 2006 第16回マイクロエレクトロニクスシンポジウム論文集)

    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年10月

    CiNii

▼全件表示

産業財産権

  • 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

    特許権

    J-GLOBAL

  • 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

    特許権

    J-GLOBAL

  • 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

    特許権

    J-GLOBAL

  • 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

    特許権

    J-GLOBAL

  • 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

    特許権

    J-GLOBAL

  • 半導体装置及び接着シート

    特許第5095697号

    林秀和, 冨田寛, 相良潤也, 田久真也, 黒澤哲也, 戸ヶ崎徳大, 北島由貴子

    特許権

    J-GLOBAL

  • ボンディングワイヤの接合構造及び接合方法

    戸ヶ崎徳大, 中尾光博, 森田洋輔

    特許権

    J-GLOBAL

  • 半導体装置の製造方法

    黒澤哲也, 相良潤也, 田久真也, 戸ヶ崎徳大

    特許権

    J-GLOBAL

  • 半導体装置の製造方法

    戸ヶ崎徳大

    特許権

    J-GLOBAL

  • 半導体製造装置およびその製造方法

    戸ヶ崎徳大, 飯塚和宏

    特許権

    J-GLOBAL

▼全件表示

受賞

  • 水野奨励賞

    2016年03月   早稲田大学   将来型リチウム空気電池のための金属リチウム負極の開発  

  • Poster award

    2015年12月   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年12月   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年08月   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  

  • イノベーションアワード(社長表彰)

    2010年11月   株式会社東芝  

    受賞者: 戸ヶ崎 徳大

共同研究・競争的資金等の研究課題

  • 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

    日本学術振興会  科学研究費助成事業 若手研究

    研究期間:

    2020年04月
    -
    2023年03月
     

    戸ヶ崎 徳大

     概要を見る

    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

    JX日鉱日石エネルギー株式会社  若手奨励研究

    研究期間:

    2013年06月
    -
    2014年02月
     

  • 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

    JX日鉱日石エネルギー株式会社  若手研究者奨励

    研究期間:

    2012年10月
    -
    2013年02月
     

講演・口頭発表等

  • 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  

    発表年月: 2020年10月

    開催年月:
    2020年10月
     
     
  • 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  

    発表年月: 2020年10月

    開催年月:
    2020年10月
     
     
  • 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  

    発表年月: 2020年03月

    開催年月:
    2020年03月
     
     
  • 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  

    発表年月: 2020年03月

    開催年月:
    2020年03月
     
     
  • 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  

    発表年月: 2019年11月

    開催年月:
    2019年11月
     
     
  • Restriction of the redox shuttle phenomenon of lithium iodide using freestanding electropolymerized polypyrrole film in a Li-O2 cell

    Norihiro Togasaki, Ryuji Shibamura, Toshiyuki Momma, Tetsuya Osaka

    12th International Symposium on Electrochemical Micro & Nanosystem Technologies   (ミラノ) 

    発表年月: 2018年08月

    開催年月:
    2018年08月
     
     
  • Improved Cycling Performance of δ-MnO2 Cathode using LiNO3 in Li-O2 batteries

    Norihiro Togasaki, Tadayoshi Gobara, Toshiyuki Momma, Tetsuya Osaka

    International Conference on Advanced Lithium Batteries for Automobile Applications (ABAA-10)   (シカゴ) 

    発表年月: 2017年10月

  • Effect of highly concentrated dimethylsulfoxide-based electrolyte using lithium nitrate on the cathode reaction in a lithium-oxygen battery

    Takuya Naruse, Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    The Electrochemical Society of Japan   (長崎) 

    発表年月: 2017年09月

  • A Novel Design of a Dimethylsulfoxide-Based Electrolyte for a Stable Charge-Discharge Cycling of a Li Metal Anode in Lithium-Oxygen Batteries

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    The 18th International Meeting on Lithium Batteries   (シカゴ) 

    発表年月: 2016年06月

  • Enhanced Cycling Performance of a Li Metal Anode in a Dimethylsulfoxide-based Electrolyte Using Highly Concentrated Lithium Salt for a Lithium-Oxygen Battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    DGIST-WASEDA workshop on electrochemistry   (東京) 

    発表年月: 2015年12月

  • The reaction behavior of MnO2 and Li ion in air cathode during discharge-charge process

    Tadayoshi Gobara, Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    56th Denchi Toronkai   (名古屋) 

    発表年月: 2015年11月

  • Preparation of the Lithium Ion Permeable Film Containing Crown Ether for Lithium-Air Battery

    Misaki Suzuki, Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    The 6th NIMS/MANA Waseda University International Symposium   (東京) 

    発表年月: 2015年07月

  • Role of the solid electrolyte interphase on a Li metal anode in a dimethylsulfoxide-based electrolyte for a lithium-oxygen battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    The 6th NIMS/MANA Waseda University International Symposium   (東京) 

    発表年月: 2015年07月

  • Role of solid electrolyte interphase (SEI) on a Li metal anode in dimethyl sulfoxide for Li-O2 battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    10th International Symposium on Electrochemical Micro & Nanosystem Technologies   (沖縄) 

    発表年月: 2014年11月

  • Cycle Life Enhancement of Metallic Li Anode by H2O and CO2 in Organic Electrolyte for Li-Air Battery

    Toshiyuki Momma, Norihiro Togasaki, Tetsuya Osaka

    The 17th International Meeting on Lithium Batteries   (コモ) 

    発表年月: 2014年06月

  • Effect of trace H2O on charge-discharge cycle performance for Li metal battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    International Symposium on Integration of Chemistry and Bioscience   (東京) 

    発表年月: 2014年01月

  • Effect of trace H2O on charge-discharge cycling life for lithium metal battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    The 6th International Workshop on Advanced Electrochemical Power Sources   (天津) 

    発表年月: 2013年12月

  • Effect of trace H2O on charge-discharge cycling life for lithium metal rechargeable battery

    Norihiro Togasaki, Toshiyuki Momma, Tetsuya Osaka

    DGIST-WASEDA workshop on electrochemistry   (東京) 

    発表年月: 2013年08月

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

    Norihiro Togasaki, Junya Sagara, Susumu Harada

    2007 Known Good Die (KGD) Workshop   (カリフォルニア) 

    発表年月: 2007年09月

  • A fine pitch wire bonding technology using electroless Nickel Phosphorous and Gold plating on Aluminum substrate

    Norihiro Togasaki, Junya Sagara, Susumu Harada

    16th The Japan Institute of Electronics Packaging   (大阪) 

    発表年月: 2006年10月

  • Preparation and characterization of amorphous gold alloy films

    Yuta Musha, Norihiro Togasaki, Yutaka Okinaka, Tetsuya Osaka

    111th Hyomen Gijutsu, Journal of Surface Finishing Society of Japan   (千葉) 

    発表年月: 2005年03月

  • Preparation and characterization of electroplated amorphous gold-nickel alloy film for electrical contact applications

    Norihiro Togasaki, Yutaka Okinaka, Takayuki Homma, Tetsuya Osaka

    5th International Symposium on Electrochemical Micro Technologies   (東京) 

    発表年月: 2004年09月

  • Effect of grain size and metal impurities on the hardness of electrodeposited gold films

    Norihiro Togasaki, Yutaka Okinaka, Takayuki Homma, Tetsuya Osaka

    107th Hyomen Gijutsu, Journal of Surface Finishing Society of Japan   (東京) 

    発表年月: 2004年03月

▼全件表示

学内研究費(特定課題)

  • 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年   逢坂哲彌, 門間聰之

     概要を見る

    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.