Titania nanotube supported tin anodes for lithium intercalation |
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| Institution: | 1. Department of Environmental Science & Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi''an Jiaotong University, Xi''an 710049, China;2. Department of Applied Chemistry, School of Science, Xi''an Jiaotong University, Xi''an 710049, China;1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology, Ulsan 689-798, Republic of Korea;2. Battery Research Center, Korea Electrotechnology Research Institute, 12 Bulmosan-ro, 10 beon-gil, Changwon 642-120, Republic of Korea |
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| Abstract: | A new type of nanostructured titania nanotube supported tin anode was prepared for lithium ion batteries. The as-prepared titania nanotubes are in the anatase phase with diameters of about 12 nm. Tin nanoparticles are dramatically decorated on the titania nanotubes and have a particle size of about 10 nm. This new structure promises good retention of reversible capacity on cycling for lithium intercalation. By charge/discharge measurements, the reversible capacity of the titania nanotubes supported tin anode for lithiation and de-lithiation was found to be 312 mA h/g (cycled between 0.05 and 2.0 V) and 203 mA h/g (cycled between 0.05 and 1.3 V) after 50 cycles with around 100% columbic efficiency. |
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