Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 19, Pages 6981-6986Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp40790f
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Funding
- Office of Science, Office of Basic Energy Sciences, of the U. S. Department of Energy [E-AC02-05CH11231]
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SnS2 nanoparticle-loaded graphene nanocomposites were synthesized via one-step hydrothermal reaction. Their electrochemical performance was evaluated as the anode for rechargeable lithium-ion batteries after thermal treatment in an Ar environment. The electrochemical testing results show a high reversible capacity of more than 800 mA h g(-1) at 0.1 C rate and 200 mA h g(-1) for up to 5 C rate. The cells also exhibit excellent capacity retention for up to 90 cycles even at a high rate of 2 C. This electrochemical behavior can be attributed to the well-defined morphology and nanostructures of these as-synthesized nanocomposites, which is characterized by high-resolution transmission electron microscopy and electron energy-loss spectroscopy.
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