Synthesis of SnO2 nano hollow spheres and their size effects in lithium ion battery anode application

被引：118

作者：

Kim, Won-Sik ^{[1
]}

Hwa, Yoon ^{[1
]}

Jeun, Jeong-Hoon ^{[1
]}

Sohn, Hun-Joon ^{[1
]}

Hong, Seong-Hyeon ^{[1
]}

机构：

[1] Seoul Natl Univ, RIAM, Dept Mat Sci & Engn, Seoul 151744, South Korea

来源：

JOURNAL OF POWER SOURCES | 2013年 / 225卷

基金：

新加坡国家研究基金会;

关键词：

Tin oxide; Hollow sphere; Size-control; Lithium ion battery; NANOSPHERES;

D O I：

10.1016/j.jpowsour.2012.10.030

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：

Nano-sized SnO2 hollow spheres are facilely synthesized by sol-gel method using the SiO2 nanospheres as sacrificed templates, and their electrochemical properties are investigated as an anode application for lithium ion battery (LIB). The size of the hollow spheres is controlled by using different-sized templates. As-coated SnO2 shell is almost amorphous and transformed into a rutile phase after annealing at 600 degrees C. The size of the SnO2 hollow spheres ranges from 25 to 100 nm. The shell thickness is almost constant (similar to 5 nm) irrespective of the size of the hollow spheres. The hollow spheres showed the size dependent electrochemical properties, and the smallest SnO2 (25 nm) hollow sphere exhibited a high reversible capacity of 750 mAh g(-1) as well as excellent cyclability. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：108 / 112

页数：5

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