Synthesis and electrochemical analysis of AlVMoO$_7$ oxide prepared via sol–gel method

[摘要] In this study, AlVMoO$_7$ phase was fruitfully synthesized by sol–gel method and investigated as electrode material. The role of trivalent cation Al on the position of V and Mo redox couples in a three-dimensional framework ofAlVMoO$_7$ promoted us to use this compound. The electrochemical insertion of Li in this phase was characterized by both solid solution and two-phase regimes. In the voltage range of 3.2–1.5, the first cycle discharge capacity value was found to be 310 mAh g$^{−1}$. It showed very good capacity of 180 mAh g$^{−1}$ even after 20 cycles.

[学科分类] 材料工程

[关键词] 3D structure;AlVMoO$_7$;electrochemical Li insertion.