Abstract Lithium vanadate, LiVO3, has been successfully synthesized by a soft chemistry route with subsequent calcinations. The influence of synthesis temperature on the structure properties including lattice parameters and crystallite size were investigated by X-ray powder diffraction. The LiVO3 compound fabricated at 350 °C has the smallest particles with diameters ranging from 500 nm to 1 μm, and possesses the best performance including high discharge capacity, good rate capability and cyclic stability as cathode materials for lithium batteries. Highly stable specific capacities of 257, 233, 203.8, 173.7 and 141.9 mA h g−1 can be achieved at current densities of 100, 200, 400, 800 and 1500 mA g−1, respectively. The phase transition of the discharged electrode has been evaluated by the ex-situ XRD techniques. Electrochemical impedance spectra (EIS) measurements were carried out to determine the influence of phase transition on the lithium diffusion coefficients.

中文翻译：

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LiVO3的简便合成及其在可充电锂电池中的电化学行为

摘要 钒酸锂 LiVO3 已通过软化学路线和后续煅烧成功合成。通过X射线粉末衍射研究了合成温度对晶格参数和晶粒尺寸等结构性质的影响。在 350 °C 下制备的 LiVO3 化合物具有最小的颗粒，直径范围为 500 nm 至 1 μm，并具有最佳性能，包括高放电容量、良好的倍率性能和循环稳定性，作为锂电池正极材料。在电流密度分别为 100、200、400、800 和 1500 mA g-1 时，可以实现 257、233、203.8、173.7 和 141.9 mA h g-1 的高度稳定的比容量。放电电极的相变已通过非原位 XRD 技术进行评估。