球型Li_2Fe_(0.5)Mn_(0.5-x)V_xSiO_4(x=0-0.1)材料的合成及其电化学性能研究

Synthesis and electrochemical property of spherical Li_2Fe_(0.5)Mn_(0.5-x)V_xSiO_4(x=0-0.1)

采用一种简单的喷雾溅射法成功制备出了球型Li_2Fe_(0.5-x)Mn_0.5V_xSiO_4(x=0-0.1)。合成的产物经XRD和SEM分析手段进行表征。此外,还考察了V掺杂量对其电化学性能的影响,结果表明V掺杂量为0.05时能大幅度改善材料的电化学性能。

The spherical Li2Fe（0.5）Mn（0.5-x）VxSiO4（x=0-0.1）were successfully synthesized using a simple spray sputtering method.The product was characterized by X-ray diffraction（XRD）and scanning electron microscopy（SEM）.Moreover,the effect of amount of V doping on their electrochemical properties was investigated.The results showed that the sample Li2Fe（0.5）Mn（0.5-x）VxSiO4 with dopping of x=0.05 can remarkable improve electrochemical capacity.