Functional ionic liquids for electrochemical devices
| Project/Area Number |
17073013
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
HAGIWARA Rika Kyoto University, 大学院・エネルギー科学研究科, 教授 (30237911)
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| Co-Investigator(Kenkyū-buntansha) |
NOHIRA Toshiyuki 京都大学, 大学院・エネルギー科学研究科, 准教授 (00303876)
宇井 幸一 岩手大学, 工学研究科, 准教授 (60360161)
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| Co-Investigator(Renkei-kenkyūsha) |
UI Koichi 岩手大学, 大学院・工学研究科, 准教授 (60360161)
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| Project Period (FY) |
2005 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥38,200,000 (Direct Cost: ¥38,200,000)
Fiscal Year 2009: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2008: ¥8,300,000 (Direct Cost: ¥8,300,000)
Fiscal Year 2007: ¥8,300,000 (Direct Cost: ¥8,300,000)
Fiscal Year 2006: ¥8,300,000 (Direct Cost: ¥8,300,000)
Fiscal Year 2005: ¥8,300,000 (Direct Cost: ¥8,300,000)
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| Keywords | イオン液体 / 溶融塩 / 電気化学 / イオン導電性 / 粘性率 / 燃料電池 / キャパシタ / リチウム電池 / 電気二重層キャパシタ / 電気ニ重層キャパシタ |
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| Research Abstract |
Electrochemical capacitors using fluorohydrogenate ionic liquids exhibit excellent performance in a wide temperature range especially below room temperatures down to -40℃. DMIm(FH)_2.3F has given the highest capacitance of 178 F g^<-1> at room temperature and a wide temperature range of operation above and below 0℃. A fuel cell using fluorohydrogenate salts as the electrolyte has demonstrated to operate at 120℃ under unhumidified condition. A lithium/LiFePO_4 battery using mixed alkali TFSA salts as the electrolyte has exhibited capacity of 90 mAhg^<-1> at 5C rate. Na/NaCrO_2 secondary battery with NaTFSA-CsTFSA binary molten salt has shown an excellent performance with a potential plateau at 2.8 V vs Na^+/Na at a rate of 10 mA (g-NaCrO_2)^<-1>.
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Report
(6 results)
Research Products
(213 results)
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[Presentation] Rechargeable lithium batteries using molten (Li, K, Cs)TFSI mixture as an electrolyte2008
Author(s)
Takuya Goto, Atsushi Watarai, Keigo Kubota, Masaki Yamagata, Toshiyuki Nohira, Rika Hagiwara, Koichi Ui, Naoaki Kumagai
Organizer
7th France-Japan Joint Seminar on Lithium batteries
Place of Presentation
Essonne, France
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[Book] Ionic Liquids:Not Just Solvents Anymore2007
Author(s)
C. Larriba, D. Garoz, C. Bueno, I. Romero-Sanz, S. Castro, J. Fernandez de la Mora, Y. Yoshida, G. Saito, R. Hagiwara, K. Matsumoto, J. Wilkes
Publisher
Oxford University Press
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[Patent(Industrial Property Rights)] Molten salt composition for secondary battery electrolyte2006
Inventor(s)
Hagiwara, Rika; Matsumoto, Kazuhiko; Tamaki, Kenichiro; Nohira, Toshiyuki; Goto, Takuya
Industrial Property Rights Holder
(米国を除くすべての指定国について)国立大学法人京都大学、(米国についてのみ):Hagiwara, Rika; Matsumoto, Kazuhiko; Tamaki, Kenichiro; Nohira, Toshiyuki; Goto, Takuya
Filing Date
2006-09-28
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