Preparation and Performance Study of Li_(1.02)(Fe_(0.8)Mn_(0.2))PO_4/C by Ti Doping

摘要

Ti dopping Lil.02(Fe0.8Mn0.2)PO4/C (Ti=0.01,0.03,0.05,0.07) was prepared by high temperature solid-state method ,with LiH2PO4, LiCO3, FeC2O4.2H2O , Mn(CH3COOH)2.4H2O TiO2 as raw materails. Glucose (C6H12O6) as carbon soures.join in the mixture when ball milling. The structure and morphology of the samples were characterized by X-ray diffraction(XRD) and scanning electron microscope(SEM). CHI660B electrochemical workstation was used to study the electrochemical performance of cathode material. The well-crystallized LiFePO4/C composite with homogeneous small particles was obtained after reacting at 700°C for 10h.