Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 658, Issue -, Pages 234-240Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.10.212
Keywords
SnO2; Super P; Nanocomposite; Na-ion battery; Anode
Categories
Funding
- National Key Technology RD Program [2013BAF09B02]
- National Natural Science Foundation of China [51472152]
- Innovation Team Assistance Foundation of Shaanxi Province [2013KCT-06]
- Scientific Special Foundation of Shaanxi Province Office of Education [15JK1074]
- Doctoral Initial Foundation [BJ14-16]
- 973 Special Preliminary Study Plan [2014CB260411]
- Graduate Innovation Fund of Shaanxi University of Science and Technology
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Super P was firstly used to enhance the electrochemical performance of SnO2 as anode in Na-ion battery. This composite was prepared by a simple hydrothermal method, exhibiting uniformly dispersed SnO2 nanoparticles on the super P carbon spheres. The SnO2/C nanocomposite could deliver a discharge capacity of 293 mAh g(-1) after 100 cycles at a current density of 50 mA g(-1). Even at 1000 mA g(-1), a capacity of 150 mAh g(-1) was still maintained. Further study found that SnO2/super P nanocomposite provided a high Na ion diffusion coefficient and good structural stability during the cycling test. Combining the advantages of low cost and environmental benignity suggest the SnO2/super P composites in this work have great potential as a promising anode for high performance Na-ion battery. (C) 2015 Elsevier B.V. All rights reserved.
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