| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 181524 | Electrochemistry Communications | 2009 | 4 Pages |
Abstract
V2O5·0.6H2O nanoribbons were prepared and their electrochemical behaviors in K2SO4 aqueous solution were investigated. Results show for the first time that K+ ions could intercalate/deintercalate reversibly in the V2O5·0.6H2O lattice. An asymmetric supercapacitor activated carbon/0.5 mol/l K2SO4/V2O5·0.6H2O was successfully assembled, which could be cycled reversibly in the voltage region of 0–1.8 V. This supercapacitor presents an energy density of 29.0 Wh/kg based on the total mass of the active electrode materials, a very good rate behavior with energy density of 20.3 Wh/kg at power density of 2 kW/kg, and also a rather good cycling performance.
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Authors
Q.T. Qu, Y. Shi, L.L. Li, W.L. Guo, Y.P. Wu, H.P. Zhang, S.Y. Guan, R. Holze,