Study on Li_1+xV₃O₈ synthesized by microwave sol-gel route

Li_1+xV₃O₈ material was synthesized by sintering the gel starting from LiOH·H₂O, NH₄VO₃ and C₆H₈O₇·H₂O in a scientific microwave oven with temperature and power control, which is called microwave sol-gel route. The samples sintered by microwave in various durations were investigated via X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammograms (CVs) and charge/discharge test to evaluate the effect of sintering duration. It shows that sintering duration in microwave at 400 °C between 100 and 150 min is a more suitable option for MW-sol-gel route to prepare cathode material Li_1+xV₃O₈. Our paper suggests that the microwave sol-gel route is a rapid and efficient synthetic method for preparing Li_1+xV₃O₈ cathode material.