Synthesis of SnO2/Mg2SnO4 nanoparticles and their electrochemical performance for use in Li-ion battery electrodes

被引：37

作者：

Xiao, Ting ^{[1
]}

Tang, Yiwen ^{[1
]}

Jia, Zhiyong ^{[1
]}

Feng, Shuanglong ^{[1
]}

机构：

[1] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 08期

关键词：

SnO2/Mg2SnO4; Nanoparticles; Li-ion batteries; Anode materials; Pyrolysis; LITHIUM; TIN; ANODES; SNO2;

D O I：

10.1016/j.electacta.2008.10.061

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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.

引用

页码：2396 / 2401

页数：6

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