Please use this identifier to cite or link to this item:
|Title:||A new form of vanadium oxide for use as a cathode material in lithium batteries|
|Source:||Dai, J.,Li, S.F.Y.,Gao, Z.,Siow, K.S. (1998-07-15). A new form of vanadium oxide for use as a cathode material in lithium batteries. Journal of Power Sources 74 (1) : 40-45. ScholarBank@NUS Repository.|
|Abstract:||A new form of vanadium oxide, (Na2O)0.23V2O5, is synthesised by precipitation of sol and removing water. Its performance as a cathode material is studied by chronopotentiometry and cyclic voltammetry. A capacity of more than 220 mA h g-1 can be obtained in 12 cycles when the voltage is from 3.8 to 1.8 V. Its capacity and cyclability are satisfactory in comparison with other forms of vanadium oxide and synthesis is relatively easy. X-ray diffraction (XRD) studies show that (Na2O)0.23V2O5 is quasi-tetragonal crystal after heating at a temperature below 250°C. The crystallites of (Na2O)0.23V2O5 are in platelet form, and their dimensions are less than 2 μm. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) studies found that the sol-precipitate, (Na2O)0.23V2O5 · xH2O, can lose water at 200°C. © 1998 Elsevier Science S.A. All rights reserved.|
|Source Title:||Journal of Power Sources|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 15, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.