Lithium Intercalation and Crystal Chemistry of Li₃VO₄Synthesized by Ultrasonic Nebulization as a New Anode Material for Secondary Lithium Batteries

Li 3 VO 4 synthesized by ultrasonic spray pyrolysis was studied as a new anode material for lithium-ion batteries. Li 3 VO 4 sample heated up to 500°C has a round shape and smaller size compared with the samples synthesized by the solid-state reaction and solution-based precipitation. Compared to previously reported results, enhanced capacities and rate capabilities were obtained. Charge and discharge capacities of 250 mAh g −1 after 100 th cycle and excellent cyclabililties were observed. The average potentials for the charge and discharge curves are found to be lower than those of Li 4 Ti 5 O 12 . New crystallographic planes that appear after the lithiation were identified by XRD and T.E.M. studies.