关键词: 锂蓄电池, 钒酸锂化合物, 合成, 电化学性能

Abstract:

Lithium vanadium oxide LiV₃O₈ used as the cathode of rechargeable lithium batteries was made by a new synthesis method, in which LiOH, V₂O₅ and
NH₃H₂O were used as starting reactants to produce precursor containing Li and V, and then calcining the precursor to obtain the resulting production LiV₃O₈.
The X-ray diffraction patterns show that the LiV₃O₈ compound made by this new method has a different crystalline orientation compared with that prepared by
traditional synthesis methods, and the crystallinity of the former is lower. The discharge-charge test results demonstrate that the LiV₃O₈ compound
has good discharge-charge properties, with a discharge specific capacity of 264mAh/g in the first cycle and 249mAh/g in the fifteenth cycle.

Key words: rechargeable lithium batteries, lithium vanadium oxide, synthesis, electrochemical properties