Preparation and Lithium/Sodium Storage of Sulfur Doped V₂O₃/C Nanowires

To solve the problems of low electrical conductivity and poor stability of V₂O₃ as an anode electrode of secondary batteries, sulfur (S) doped V₂O₃/C nanowires were prepared via electrostatic spinning and sulfuration treatment technology. The structure, chemical composition, and energy storage properties were characterized. The results show that the S doped V₂O₃/C nanowire as an anode electrode for lithium ion batteries has a discharge specific capacity of 538 mA·h/g at a current density of 0.1 A/g after 50 cycles, and the discharge specific capacity at 2 A/g after 600 cycles can still maintain 288 mA·h/g. The specific capacity of sodium ion batteries with S-doped V₂O₃/C nanofiber as an anode electrode is 233 mA·h/g at 0.1 A/g after 100 cycles.