期刊
ELECTROCHIMICA ACTA
卷 54, 期 10, 页码 2699-2705出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.11.060
关键词
Lithium-ion batteries; Anode; Sn composite; EXAFS
资金
- Samsung Advanced Institute of Technology
- Korea Science and Engineering Foundation (KOSEF)
- Research Center for Energy Conversion
- Storage at Seoul National University [R11-2002-102-02001-0]
Sn-Fe/carbon nanocomposites were synthesized by the mechanochemical treatment of Sn with various amounts of an Fe/C composite through the pyrolysis of Fe(III) acetylacetonate. The composites were then evaluated as alternative anode materials for rechargeable lithium batteries. Based on the obtained ex situ X-ray diffraction (XRD) data, X-ray absorption spectroscopy (XAS) results, and differential capacity plots (DCPs), a reaction mechanism was suggested. It was found that increasing the amounts of the SnFe phase and pyrolyzed carbon in the composite improved its electrochemical characteristics in terms of its capacity retention. (C) 2008 Elsevier Ltd. All rights reserved.
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