In situ fabrication of spherical porous tin oxide via a spray pyrolysis technique

被引：20
|
作者：
Yuan, L. [1 ]
Guo, Z. P. [1 ]
Konstantinov, K. [1 ]
Wang, J. Z. [1 ]
Liu, H. K. [1 ]
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia
来源：
ELECTROCHIMICA ACTA | 2006年 / 51卷 / 18期
基金：
澳大利亚研究理事会;
关键词：
spherical porous SnO2; spray pyrolysis; anode; lithium-ion battery;
D O I：
10.1016/j.electacta.2005.10.021
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Spherical porous tin oxide was fabricated via a spray pyrolysis technique. TEM revealed that the primary SnO2 crystals had an average size of 5-10 nm. Good interconnection between SnO2 crystals is also observed. The electrochemical measurements showed that the spherical porous SnO2 samples have excellent cyclability, which can deliver a reversible capacity of 4 10 mAh/g for up to 50 cycles as a negative electrode for lithium batteries. Our approach for enhancing the structural stability of tin oxide is to incorporate spherical porous structures as a buffer zone to alleviate the volume expansion of the tin oxide anode during lithiation/delithiation. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3680 / 3684
页数：5
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