Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7737675 | Journal of Power Sources | 2014 | 4 Pages |
Abstract
Carbon-coated Li3VO4 sample is synthesized by a simple sol-gel method. X-ray diffraction and X-ray photoelectron spectroscopy results show that single-phase Li3VO4 can be obtained in a reducing atmosphere with the valence of vanadium of +5. The final product sintered at 650 °C demonstrates a favorable electronic conductivity with 6.12% residual carbon. Electrochemical testing shows that the carbon-coated Li3VO4 sample display a discharge capacity of 662.6 mAh gâ1 and 507.4 mAh gâ1 at 0.18C in the first and the second cycle, respectively, and a reversible capacity (charge capacity) of â¼480.0 mAh gâ1 can be obtained in the second cycle. Furthermore, the discharge-charge capacity of the sample can retain â¼180 mAh gâ1 and â¼90 mAh gâ1 at 12C and 40C, respectively.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Zhiyong Liang, Yanming Zhao, Liuzhang Ouyang, Youzhong Dong, Quan Kuang, Xinghao Lin, Xudong Liu, Danlin Yan,