中文摘要：

在溶剂热条件下以VOSO4为钒源制备出一系列钒掺杂磷酸铁锂纳米颗粒。利用电感耦合等离子体发射光谱（ICP-OES）、X射线衍射（XRD）和扫描电子显微镜（SEM）等分别对产物的组成、结构及形貌进行表征。结果表明：溶剂热条件下钒掺杂磷酸铁锂可行;钒掺杂量为原料中钒含量的75%;钒进入磷酸铁锂晶格内占据Fe空位和Li空位;钒掺杂后的磷酸铁锂样品的颗粒粒径变小,易团聚,样品中V含量高于3.8%时发生明显团聚,所得掺杂样品的电化学性能不佳。

英文摘要：

A series of vanadium-doped LiFePO4 samples were synthesized using solvothermal method with VOSO4 as vanadium sources. Elements＇ content, structures and morphologies of samples were characterized via Inductively Coupled Plasma Optical Emission Spectrometer （ICP-OES）, X-ray diffraction （XRD） and scanning electron microscope （SEM）. Analysis results show that it＇ s possible for vanadium-doped LiFePO4 under solvothermal conditions ; the content of vanadium is 75 % of that in raw materials; Fe vacancy and Li vacancy are occupied by V in sample lattices; particle sizes turns to be smaller with vanadium doped into lattice and therefore results in particle agglomeration, especially with vanadium content over 3.8% , and this also results in bad electrochemical performances.