期刊
ELECTROCHIMICA ACTA
卷 54, 期 8, 页码 2396-2401出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.10.061
关键词
SnO2/Mg2SnO4; Nanoparticles; Li-ion batteries; Anode materials; Pyrolysis
资金
- COSTIND
- Ministry of Education of China [A1420060185]
- Key Project of Ministry of Education of China [108097]
Uniform crystalline MgSn(OH)(6) nanocubes were synthesized by a hydrothermal method. The influences of reaction conditions were investigated and the results showed that the solvent constituents significantly affected the shape and size of MgSn(CH)(6)center dot SnO2/Mg2SnO4 has been obtained by thermal treatment at 850 degrees C for 8 h under a nitrogen atmosphere using MgSn(OH)(6) as the precursor. The electrochemical tests of SnO2/Mg2SnO4 revealed that SnO2/Mg2SnO4 has a higher capacity and better cyclability compared to pure SnO2 or Mg2SnO4. The electrochemical performance of SnO2/Mg2SnO4 was sensitive to the size of the nanoparticles. The lithium-driven structural and morphological changes of the electrode after cycling were also studied by the ex-situ XRD pattern and TEM tests. This work indicates that SnO2/Mg2SnO4 is a promising anode material candidate for application in Li-ion batteries. (C) 2008 Elsevier Ltd. All rights reserved.
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