2013 Fiscal Year Final Research Report
Development of anode of high performance lithium ion capacitors using single-walled carbon nanotube thin films
| Project/Area Number |
23686092
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Tohoku University |
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Principal Investigator |
SATO Yoshinori 東北大学, 環境科学研究科, 准教授 (30374995)
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| Research Collaborator |
ITOH Takashi 東北大学, 学際科学フロンティア研究所, 准教授
ONEGAWA Satoshi NECトーキン株式会社, 部長
HATO Yukinori NECトーキン株式会社, シニアエキスパート
MIYAGAWA Risa NECトーキン株式会社, 主任
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 表面・界面物性 / 単層カーボンナノチューブ / 蓄電池 / リチウムイオンキャパシタ / 電気二重層 |
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| Research Abstract |
We investigated the properties of lithium ion capacitors (LICs) using highly crystalline single-walled carbon nanotube (SWCNT) thin films with carboxyl groups as an anode. The decrease of the capacity of LICs was suppressed at a high rate, and also the decrease of the capacitance and the increase of the internal resistance were suppressed at overcharging voltages. If the capacitance of SWCNTs is large, we can fabricate a high performance LICs. In contrast, the properties of the LICs decrease at over-discharging voltages. In the future, we need to clarify phenomena caused in SWCNT electrodes in over-discharging.
We synthesized ethylenediaminated SWCNTs (EDA-SWCNTs) from fluorinated SWCNTs and investigated the properties of electric double-layer supercapacitors (EDLSCs) with EDA-SWCNTs as electrodes. Free-standing EDA-SWCNT electrodes for EDLSCs are effective as electrodes and improve the properties of EDLSCs in comparison to binder-free COOH-SWCNT electrodes.
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Research Products
(20 results)
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[Journal Article] Long-term biopersistence of tangled oxidized carbon nanotubes inside and outside macrophages in rat subcutaneous tissue2013
Author(s)
Y. Sato, A. Yokoyama, Y. Nodasaka, T. Kohgo, K. Motomiya, H. Matsumoto, E. Nakazawa, T. Numata, M. Zhang, M. Yudasaka, H. Hara, R. Araki, O. Tsukamoto, H. Saito, T. Kamino, F. Watari, K. Tohji
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Journal Title
Scientific Reports
Volume: 3
Pages: 2516(1)-2516(10)
DOI
Peer Reviewed
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[Journal Article] Helicity Selective Photoreaction of Single-walled Carbon Nanotubes with Organosulfur Compounds in the Presence of Oxygen2013
Author(s)
Y. Maeda, J. Higo, Y. Amagai, J. Matsui, K. Ohkubo, Y. Yoshigoe, M. Hashimoto, K. Eguchi, M. Yamada, T. Hasegawa, Y. Sato, J. Zhou, J. Lu, T. Miyashita, S. Fukuzumi, T. Murakami, K. Tohji, S. Nagase, T. Akasaka
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Journal Title
Journal of the American Chemical Society
Volume: 135
Pages: 6356-6362
DOI
Peer Reviewed
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[Journal Article] Influence of the structure of the nanotube on the mechanical properties of binder-free multi-walled carbon nanotube solids2012
Author(s)
Y. Sato, H. Nishizaka, S. Sawano, A. Yoshinaka, K. Hirano, S. Hashiguchi, T. Arie, S. Akita, G. Yamamoto, T. Hashida, H. Kimura, K. Motomiya, K. Tohji
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Journal Title
Carbon
Volume: 50
Pages: 34-39
DOI
Peer Reviewed
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[Journal Article] Structural and Electrochemical Characterization of Ethylenediaminated Single-Walled Carbon Nanotubes Prepared from Fluorinated SWCNTs
Author(s)
K. Bushimata, S.–I. Ogino, K. Hirano, T. Yabune, K. Sato, T. Itoh, K. Motomiya, K. Yokoyama, D. Mabuchi, H. Nishizaka, G. Yamamoto, T. Hashida, K. Tohji, Y. Sato
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Journal Title
The Journal of Physical Chemistry C
Volume: (Accepted)
Peer Reviewed
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