Journal
MATERIALS RESEARCH BULLETIN
Volume 45, Issue 4, Pages 437-441Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2009.11.011
Keywords
Composites; Nanostructures; Semiconductors; Chemical synthesis; Energy storage
Categories
Funding
- National Natural Science Foundation of China [50772025]
- Natural Science Foundation of Heilongjiang Province, China [F200828, E200839]
- Ministry of Science and Technology of China [2008DFR20420]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20070217002]
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The multi-walled carbon nanotube/SnO2 core-shell structures were fabricated by a wet chemical route. The electrochemical performance of the core-shell structures as anode materials of lithium-ion batteries was investigated. The initial discharge capacity and reversible capacity are Lip to 1472.7 and 1020.5 mAh g(-1), respectively. Moreover, the reversible capacity still remains above 720 mAh g(-1) over 35 cycles, and the capacity fading is only 0.8% per cycle. Such high capacities and good cyclability are attributed to SnO2 network Structures, excellent mechanical property and good electrical conductivity of the multi-walled carbon nanotubes. (C) 2009 Elsevier Ltd. All rights reserved.
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