Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 9, Pages 4576-4582Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta10932b
Keywords
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Funding
- National Science Foundation of China [U1401246, 51364004, 21473042, 51474110]
- China Postdoctoral Science Foundation [2014M552288]
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A Sn/SnOx/MoS2/C composite material with superior performance was developed as an anode for lithium-ion batteries via a facile and scalable ball-milling method using a three-dimensional (3D) self-assembly of NaCl particles as a template. In the constructed architecture, carbon nanosheets avoided the direct exposure of encapsulated Sn/SnOx nanoparticles to the electrolyte and preserved the structural and interfacial stability of the nanoparticles, protecting them from volume expansion during the charge/ discharge process. The MoS2 particles, uniformly dispersed on the carbon nanosheets, facilitate an efficient ion transport and ensure structural durability as a particle reinforcing agent. When used as an anode material in lithium-ion batteries, the as-prepared Sn/SnOx/MoS2/C composite exhibit a high rate performance and long cyclic stability, even at a high current density of 3 A g (-1) (specific capacity of 725.3 mA h g(-1) after 800 cycles). This simple fabrication method and the excellent electrochemical performance demonstrates the potential use of the Sn/SnOx/MoS2/C composite as an anode material for high-performance lithium-ion batteries.
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