Nano-structured spherical porous SnO2 anodes for lithium-ion batteries

被引：107

作者：

Yuan, L. ^{[1
]}

Guo, Z. P. ^{[1
]}

Konstantinov, K. ^{[1
]}

Liu, H. K. ^{[1
]}

Dou, S. X. ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

来源：

JOURNAL OF POWER SOURCES | 2006年 / 159卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

lithium-ion; anodes; SnO2; tin; nano-particles;

D O I：

10.1016/j.jpowsour.2006.04.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 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 about 5 nm. The electrochemical measurements showed that the spherical porous SnO2 samples have excellent cyclability, which can deliver a reversible capacity of 410 mAh g(-1) up to 50 cycles as a negative electrode for lithium batteries. The second step of the study was to thermal treat the initial tin oxide for 3 h at 600, 800, 1000 and 1200 degrees C, respectively, in order to identify the particle size effect on the electrochemical performance toward lithium. It was found that the morphologies of these spherical clusters could be maintained even after thermal treatment at 1200 degrees C. It was also proved that finer the size of the tin oxide particles the better the electrochemical performance. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：345 / 348

页数：4

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