Defocused laser ablation process—A high-efficiency way to fabricate MoO3[sbnd]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 3 Mo integrated anode through ablation treatment by nanosecond laser and further realize a variety of morphologies of MoO 3 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 3 Mo with different morphologies are studied. Highlights • MoO 3 Mo integrated anode is fabricated with nanosecond laser in several minutes. • Its electrochemical performance is notably improved through focal length adjustment. • It achieves a high initial Coulombic Efficiency of 85.72%. [ABSTRACT FROM AUTHOR]