Cooperative enhancement of capacities in nanostructured SnSb/carbon nanotube network nanocomposite as anode for lithium ion batteries
SnSb-carbon nanotube nanocomposites are prepared by mixing melt-spun nanocrystalline SnSb with carbon nanotubes. The composite with 10 wt% acid functionalized CNTs shows a good initial Coulombic efficiency of 79% and a reversible capacity of 860 mAhg−1 during the 40th cycle at a current density of 1...
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| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/95914 http://hdl.handle.net/10220/11367 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | SnSb-carbon nanotube nanocomposites are prepared by mixing melt-spun nanocrystalline SnSb with carbon nanotubes. The composite with 10 wt% acid functionalized CNTs shows a good initial Coulombic efficiency of 79% and a reversible capacity of 860 mAhg−1 during the 40th cycle at a current density of 160 mAg−1. Apart from that, the composite also shows promising capacities at high C rates. The enhancement is attributed to the synergistic effect between the nanocrystalline SnSb alloy and the CNT scaffold, which buffers the pulverization process and facilitates fast lithium ions diffusion. |
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