| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2018-12-07 |
| タイトル |
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タイトル |
Li+ Insertion/Extraction Properties for TiNb2O7 Single Particle Characterized by a Particle-Current Collector Integrated Microelectrode |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ |
journal article |
| 著者 |
稲田, 亮史
熊坂, 玲衣
稻邊, 秀斗
東城, 友都
櫻井, 庸司
Inada, Ryoji
Kumasaka, Rei
Inabe, Shuto
Tojo, Tomohiro
Sakurai, Yoji
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In this study, we evaluate the electrochemical properties of TiNb2O7 (TNO) single particle using a particle-current collector integrated microelectrode, in which TNO single particle with the size of approximately 10 μm was bonded on the tip of a tungsten microelectrode by platinum deposition using a focused ion beam process unit (FIB). Cyclic voltammogram of TNO single particle showed the reversible redox peaks at around 1.6−1.7 V vs. Li/Li+. Anodic peak current is higher than cathodic one at a fixed scan rate, indicating faster reaction during Li+ extraction (i.e. discharge) than Li+ insertion (i.e. charge) of TNO particle. This tendency was also confirmed in C-rate dependence of charge and discharge capacities. From the results for galvanostatic intermittent titration testing (GITT), we confirmed that at the equilibrium potential vs. Li/Li+ below 1.5 V, apparent chemical diffusion coefficient of Li+ in TNO at Li+ extraction process is much larger than at Li+ insertion process. Furthermore, the capacity retention of TNO single particle tested at current of 10C after 2000 cycles was above 99%, indicating excellent intrinsic stability of TNO single particle for Li+ insertion and extraction reaction. |
| bibliographic_information |
Jornal of The Elctrochemical Society
en : Jornal of The Elctrochemical Society
巻 166,
号 3,
p. A5157-A5162,
発行日 2019
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| 出版者 |
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出版者 |
The Electrochemical Society |
| item_10001_source_id_9 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1945-7111 |
| item_10001_relation_14 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
10.1149/2.0241903jes |
| 権利 |
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権利情報 |
© The Author(s) 2018. Published by ECS.This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. |
| 関連サイト |
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識別子タイプ |
URI |
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関連識別子 |
http://jes.ecsdl.org/content/166/3/A5157.full |
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関連名称 |
The Electrochemical Society |
| 出版タイプ |
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出版タイプ |
AM |
| キーワード |
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|
主題 |
Batteries-Lithium |
| キーワード |
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主題 |
Anode material |
| キーワード |
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主題 |
Lithium-ion battery |
| キーワード |
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|
主題 |
TiNb2O7 |
| キーワード |
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|
主題 |
Batteries-Lithium |
| キーワード |
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主題 |
Anode material |
| キーワード |
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主題 |
Lithium-ion battery |
| キーワード |
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主題 |
TiNb2O7 |
j00134651-0166-a5157.pdf (1.2 MB)
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