Wet coordination method to prepare carbon-coated Li3V2(PO4)3 cathode material for lithium ion batteries

A convenient method named wet coordination is used to prepare the sample or carbon-coated Li3V2(PO4)3 in the furnace with a flowing argon atmosphere at 600 °C for 1 h. The sample is characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and energy dispersive analysis of X-rays (EDAX). Galvanostatic charge–discharge between 3.3 and 4.3 V (vs. Li/Li+) shows that the sample exhibits a high discharge capacity of 128 mAh g−1 with a good reversible performance under a current density of 95 mA g−1. It suggests that carbon-coated Li3V2(PO4)3 with good electrochemical performance can be obtained via this method, which is suitable for large-scale production.

Figure optionsDownload as PowerPoint slide