Abstract
Composites of monoclinic Li3-xM'xV2-yM"2y(PO4)3 (M'=K, M"=Sc, Mg+Ti) with carbon were synthesized by solid-state reaction using oxalic acid or 10% H2/Ar gas mixture as reducing agents at sintering temperature of 750{degree sign}C. The sample was characterized by X-ray diffraction (XRD), voltammetry and electrochemical galvanostatic cycling. The initial capacity of Li3V2(PO4)3 synthesized using hydrogen as the reducing agent was 127 mAh/g, the samples exhibit good cycling performance.
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