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

Laser ablation technology is a high-efficient way to fabricate nanomaterials in-situ on the targets. In this paper, we prepare MoO3-Mo integrated anode through ablation treatment by nanosecond laser and further realize a variety of morphologies of MoO3 through adjustment of focal length. The electro...

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Bibliographic Details
Published in:Journal of alloys and compounds 2019-05, Vol.787, p.295
Main Authors: Su, Yibo, Tong, Rong-Ao, Zhang, Hongjun, Liang, Peng, Wang, Chang-An, Zhong, Minlin
Format: Article
Language:English
Subjects:
Anodes
Electrochemical analysis
Laser ablation
Lasers
Lithium
Lithium-ion batteries
Molybdenum oxides
Molybdenum trioxide
Morphology
Nanomaterials
Rechargeable batteries
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Summary:Laser ablation technology is a high-efficient way to fabricate nanomaterials in-situ on the targets. In this paper, we prepare MoO3-Mo integrated anode through ablation treatment by nanosecond laser and further realize a variety of morphologies of MoO3 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 MoO3-Mo with different morphologies are studied.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2019.02.051