Abstract
A series of Li3V2(PO4)3/C composites with different amounts of carbon are synthesized by a combustion method. The physical and electrochemical properties of the Li3V2(PO4)3/C composites are investigated by X-ray diffraction, element analysis, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy and electrochemical measurements. The effects of carbon content of Li3V2(PO4)3/C composites on its electrochemical properties are conducted with cyclic voltammetry and electrochemical impedance. The experiment results clearly show that the optimal carbon content is 4.3 wt %, and more or less amount of carbon would be unfavorable to electrochemical properties of the Li3V2(PO4)3/C electrode materials. The results would provide some basis for further improvement on the Li3V2(PO4)3 electrode materials.
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Published in Russian in Elektrokhimiya, 2017, Vol. 53, No. 4, pp. 386–391.
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Chen, J., Zhao, N. & Guo, FF. Impact of carbon coating thickness on the electrochemical properties of Li3V2(PO4)3/C composites. Russ J Electrochem 53, 339–344 (2017). https://doi.org/10.1134/S102319351704005X
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DOI: https://doi.org/10.1134/S102319351704005X