Monoclinic Li1+xV3O8 Synthesized via Electrospinning and Used as Cathode Material for Lithium Ion Batteries

Abstract

Monoclinic Li 1+x V 3 O 8 is an attractive cathode candidate for lithium-ion batteries.Here Li 1+x V 3 O 8 precursor was synthesized via a electrospinning process using LiNO 3 , NH 4 VO 3 and citric acid as raw materials, and followed by a thermal treatment at 450°C for 5 h in air atmosphere, to get well formed Li 1+x V 3 O 8 powder.The structure, morphology and electrochemical performance of the as-synthesized Li 1+x V 3 O 8 sample were characterized by X-ray diffraction (XRD), fourier transform infrared (FT-IR), scanning electron microscopy (SEM) and galvanostatic charge-discharge test.The effects of synthesis conditions on the structure and the electrochemical performance of the Li 1+x V 3 O 8 sample were evaluated and discussed.It showed a high initial capacity of 283.4 mAh•g -1 , and remained about 210 mAh•g -1 after 100 cycles.