Journal
MATERIALS LETTERS
Volume 62, Issue 14, Pages 2092-2095Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2007.11.022
Keywords
CNTs; Sb and Bi; composites; anode; lithium-ion batteries
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Sb/CNT and Bi/CNT composites were prepared by a heating treatment method. SEM imaging showed that the metal particles were uniformly deposited on the CNTs exterior and in the CNTs web. It was found that the composites showed improved cyclability than unsupported Sb and Bi and higher reversible capacities than CNTs. The improvement may be attributed to the small-scale dimension and high dispersion of the metal particles and the conductivity and ductility of the CNTs matrix. Moreover, the first reversibility was also increased comparing to CNTs, resulted from the lower surface of the composites. (C) 2007 Elsevier B.V. All rights reserved.
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