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NaV3(PO4)3(NVP) with α-CrPO4-structure has excellent thermal stability, stable structure, high specific capacity of discharge, and simple preparation method, which gradually began to receive attention, but the material has the defects of low general theoretical capacity and electrical conductivity, which have certain limitations on its electrochemical performance as well as future practical applications. In this paper, carbon coated sodium vanadium phosphate anode material was prepared by spraying method. The influence of electrochemical properties of carbon coated materials was explored. In addition, cyclic voltammetry and an electrochemical impedance test was performed using an electrochemical workstation to analyze the impedance properties of the material, charge/discharge characteristics and reaction kinetics of the materials. The experimental results showed that the cycling performance of the coated material was enhanced with a reversible capacity of 111.5 mAh g-1 at 1-3 V, while the reversible capacity of the uncoated material was 90.5 mAh g-1. The carbon coating greatly improved the cycling performance of the material, and the coated material also outperformed the uncoated one in different rate cycling from 1-3 V. The results also showed that the carbon coating was more effective than the uncoated material in cycling.
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