Abstract: A series of yttrium-doped lithium trivanadates LiV3-yYyO8(y=0, 0.01, 0.03, 0.05, 0.1 and 0.2) were synthesized by a new solid-state reaction.X-ray diffraction (XRD) tests show the different amount of yttrium doping has the different effects on the structure of LiV3O8,a proper amount of yttrium doping can retain its original structure,increase its d100 value and decrease its crystallinity.The charge-discharge,cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests show that a proper amount of yttrium doping can stabilize the cycling ability of the sample and reduce its initial capacity.The storage tests show that Y3+ doping can improve the storable properties of the cell and its discharge capacity retention (92.4%) is higher than that of the sample without Y3+ doping (88.2%) for 15 days storage at high voltage.