Electrochemical Performance of Li3V2 (PO4)3/C Cathode Material Prepared by Soft Chemistry Route
Monoclinic Li3V2 (PO4)3/C cathode material has been synthesized by soft chemistry route and the electrochemical performance of this material was investigated. The structure of the particles was characterized by X-ray diffraction (XRD). The Li3V2 (PO4)3/C composite exhibits good cycling performance and excellent rate capabilities when cycled between 3.0 and 4.3 V. At 1C rate, the cell displays a reversible capacity of 117 mAh/g and retains 98.1 % of its initial discharge capacity after 50 cycles. At the high rate of 5C, the capacity could reach 109 mAh/g, corresponding to 93 % of that at 0.5C. Electrochemical impedance spectroscopy (EIS) technique was used to analyze the chemical diffusion coefficient of Li.
Xie Yi and Li Mi
F. Wang et al., "Electrochemical Performance of Li3V2 (PO4)3/C Cathode Material Prepared by Soft Chemistry Route", Advanced Materials Research, Vols. 129-131, pp. 521-525, 2010