2012 Fiscal Year Final Research Report
Development of vanadium solid battery with high energy density for hybrid vehicles
| Project/Area Number |
22360408
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Energy engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
YAMAMURA Tomoo 東北大学, 金属材料研究所, 准教授 (20281983)
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| Co-Investigator(Kenkyū-buntansha) |
LI Dexin 東北大学, 金属材料研究所, 助教 (40281985)
SHIRASAKI Kenji 東北大学, 金属材料研究所, 技術職員 (70447176)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 固体電池 / バナジウム / 有機溶媒フリー / ハイブリッド自動車用電池 / 過電圧過 程 / 固体塩電池 / エネルギー密度 |
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| Research Abstract |
Standard rate constant, which is required to evaluate the energy efficiency, is believed to be “constant". However, there are practically dependent on the concentration of active materials. In addition, our VSSB uses slurry active material with very high concentration. In this work, the dependence of the “standard rate constant" on concentration of Vanadium ions and its effect on the energy efficiency were clarified. Standard rate constants (k0) for 1 - 5 mol dm-3 in composite of “carbon fiber - slurry active material" was evaluated. On the basis of the obtained k0 values, energy efficiencies for VRFB and VSSB were calculated. In spite that k0 decreases with increasing the concentration, energy efficiency for VSSB is not decreased because of the compensation by the large concentration.
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[Journal Article] Correlation between slow magnetic relaxation and the coordination structures of a family of linear trinuclear Zn(II)-Ln(III)-Zn(II) complexes (Ln= Tb, Dy, Ho, Er, Tm and Yb)2012
Author(s)
M. Maeda,S. Hino, K. Yamashita, Y.Kataoka, M. Nakano, T. Yamamura, T. Kajiwara
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Journal Title
Dalton Trans
Volume: 41巻
Pages: 13640- 13648
DOI
Peer Reviewed
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