Electrochemical Lithium Intercalation/Deintercalation of Single-Crystalline V[sub 2]O[sub 5] Nanowires

Abstract

This paper reports on the electrochemical lithium intercalation/deintercalation of single-crystalline nanowires that were synthesized by a two-step approach including a hydrothermal process and a post-calcinating treatment. Techniques of X-ray diffraction, field-effect scanning electron microscopy, transmission electron microscopy, and high-resolution transmission electron microscopy were used to characterize the structure, morphology, and composition of the as-prepared nanowires. It was found that nanowires were of high purity with the diameter of and the length up to . The electrochemical lithium intercalation/deintercalation of the nanowires was investigated by cyclic voltammograms and galvanostatic charge-discharge methods. The results showed that the single-crystalline nanowires exhibited high initial discharge capacity of , indicating their potential application as the cathode materials of rechargeable lithium-ion batteries.