▎ 摘　　要

Li3V2(PO4)(3) is co-modified by carbon coating and multi-dimensional networks. The conductive networks are constructed by graphene sheets to connect and support the carbon-coated Li3V2(PO4)(3) nanoparticles. Samples. were characterized by X-ray diffraction, scanning electron microscopy and electrochemical tests. The electrochemical tests show the co-modified Li3V2(PO4)(3) obtain high discharge specific capacity of 129 mAh.g(-1) at 0.2 C rate and 101 mAh.g(-1) at 5 C rate. Its capacity loss is only 21.7% when the rate varies from 0.2 C to 5 C rate. Therefore construction of carbon coating and multi-dimensional networks by polyvinyl alcohol and graphene offers an effective and convenient technique to improve the conductivity and electrochemical performance of Li3V2(PO4)(3) cathode materials. (C) 2012 Published by Elsevier B.V.