Abstract
Lithium-ion batteries (LIBs) have a promising application prospect for energy storage systems due to its high energy and power density. To promote LIBs using Li3V2(PO4)3 as the cathode material, research on the modification of Li3V2(PO4)3 materials has become a hot topic. Among them, the carbon coating of Li3V2(PO4)3 is a simple and effective solution. Herein, the influence of experimental conditions on the physical and electrochemical properties of Li3V2(PO4)3/C composites was explored by the hydrothermal method. Due to the unique carbon coating, it can not only improve the conductivity of LVP, but also buffer the volume expansion. As expected, under the condition of a high rate of 30 C, the specific discharge capacity is 44.494 mA h/g when the voltage range is 3.0–4.8 V. Overall, considering the facile preparation strategy and unique structure, the Li3V2(PO4)3/C composite is a promising candidate for the Li-ion batteries.
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