Defocused laser ablation process—A high-efficiency way to fabricate MoO3–Mo integrative anode with excellent electrochemical performance for lithium ion batteries

Abstract

Laser ablation technology is a high-efficient way to fabricate nanomaterials in-situ on the targets. In this paper, we prepare MoO<inf>3</inf>–Mo integrated anode through ablation treatment by nanosecond laser and further realize a variety of morphologies of MoO<inf>3</inf> through adjustment of focal length. The electrochemical performances of the new obtained products are notably improved. It exhibits a higher initial Coulombic Efficiency of 85.72% in comparison with the figure of 76.16% before. Moreover, the stable cyclic performance is also extended obviously from 180 cycles to at least 400 cycles, maintaining specific capacity at around 900 mAh g⁻¹. At last, the formation mechanism of MoO<inf>3</inf>–Mo with different morphologies are studied.