Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 19, Issue 39, Pages 7202-7207Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b909769d
Keywords
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Funding
- National Natural Science Foundation of China [20633040]
- State Key Basic Research Program of PRC [2007CB209703]
- Shanghai Science & Technology Committee [08DZ2270500]
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A core-shell-structure carbon-coated nanoscale Cu6Sn5 is prepared by using an in situ polymerization method integrated with a surface modification technology. The composite combines the merits of intermetallic compounds and nano-sized anode materials, and exhibits an excellent cycling stability. The improvement in the cycling stability could be attributed to the fact that the well-coated carbon layer can effectively prevent the encapsulated low melting point alloy from out-flowing in a high-temperature treatment process, as well as preventing aggregation and pulverization of nano-sized Cu6Sn5 alloy particles during charge/discharge cycling.
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