Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5145931 | International Journal of Hydrogen Energy | 2017 | 8 Pages |
Abstract
In this work, orthorhombic Li3VO4 with the controllable morphology has been synthesized by tuning the solvent composition (volume ratios of ethanol to deionized water) in a solvothermal approach. The resulting Li3VO4 samples with various morphologies (coral-shaped particle, self-assembled hierarchical microsphere, cube-like particle, sheet-like structure) show then different electrochemical performances when employed as anodes for Li-ion battery applications. The Li3VO4 with self-assembled hierarchical microsphere morphology (volume ratio of ethanol to deionized water at 15:15) exhibits the best electrochemical performance. The subsequent carbon coating process on microsphere samples is claimed to significantly improve both the capacities at both low (350-430 mAh gâ1 at 100Â mAÂ gâ1) and high current (180-350 mAh gâ1 at 2Â AÂ gâ1) conditions, and their excellent cycling stability.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Guang Yang, Jianyong Feng, Bowei Zhang, Vanchiappan Aravindan, Dongdong Peng, Xun Cao, Hao Yu, Srinivasan Madhavi, Yizhong Huang,