Abstract
In this paper, nanocomposite electrodes for rechargeable Lithium-ion battery composed of tin dioxide (SnO2) and multi-walled carbon nanotubes (MWCNTs) were prepared using the chemical deposition method with a subsequent sintering process. The as-prepared hybrids were characterized by thermal gravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. The results showed that the size of pure SnO2 particles was similar to 5 nm and hybrids presented a uniform dispersion of SnO2 nanoparticles on the surfaces of the MWCNTs. The electrochemical properties of the composites were researched through a cyclic voltammetry and a galvanostatic charge-discharge test. It was found that the electrochemical performance of the composite was strongly dependent on the content of MWCNTs in the composites. The SnO2/MWCNT composite with 18.40 wt% MWCNTs gave the best performance, exhibiting a relatively higher reversible capacity of 475 mAh g(-1) and an extended capacity retention of 65% even after 30 cycles at a current density of 78.2 mA g(-1). (C) 2014 Elsevier B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 155-160 |
Number of pages | 6 |
Journal | Materials Chemistry and Physics |
Volume | 153 |
DOIs | |
Publication status | Published - 1 Mar 2015 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Nanostructures
- Precipitation
- Chemical techniques
- Electrochemical properties
- SNO2 NEGATIVE ELECTRODE
- FACILE SYNTHESIS
- CHEMICAL-CHANGES
- PERFORMANCE
- STORAGE
- FUNCTIONALIZATION
- NANOCOMPOSITES
- NANOPARTICLES
- BEHAVIOR
- OXIDE