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Synthesis of carbon-coated Li3VO4 and its high electrochemical performance as anode material for lithium-ion batteries.
- Source :
-
Journal of Power Sources . Apr2014, Vol. 252, p244-247. 4p. - Publication Year :
- 2014
-
Abstract
- Abstract: Carbon-coated Li3VO4 sample is synthesized by a simple sol–gel method. X-ray diffraction and X-ray photoelectron spectroscopy results show that single-phase Li3VO4 can be obtained in a reducing atmosphere with the valence of vanadium of +5. The final product sintered at 650 °C demonstrates a favorable electronic conductivity with 6.12% residual carbon. Electrochemical testing shows that the carbon-coated Li3VO4 sample display a discharge capacity of 662.6 mAh g−1 and 507.4 mAh g−1 at 0.18C in the first and the second cycle, respectively, and a reversible capacity (charge capacity) of ∼480.0 mAh g−1 can be obtained in the second cycle. Furthermore, the discharge–charge capacity of the sample can retain ∼180 mAh g−1 and ∼90 mAh g−1 at 12C and 40C, respectively. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 252
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 93590077
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2013.12.019