SnO2@Co3O4 hollow nano-spheres for a Li-ion battery anode with extraordinary performance

被引：127

作者：

Kim, Won-Sik

Hwa, Yoon

Kim, Hong-Chan

Choi, Jong-Hyun

Sohn, Hun-Joon

Hong, Seong-Hyeon ^{[1
]}

机构：

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

来源：

NANO RESEARCH | 2014年 / 7卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

hollow sphere; lithium-ion battery; anode; SnO2; Co3O4; HIGH-RATE CAPABILITIES; ELECTROCHEMICAL LITHIATION; ELECTRODE MATERIALS; SECONDARY BATTERY; FACILE SYNTHESIS; LITHIUM; STORAGE; CO3O4; SIZE; TIN;

D O I：

10.1007/s12274-014-0475-2

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：

SnO2@Co3O4 hollow nano-spheres have been prepared using the template-based sol-gel coating technique and their electrochemical performance as an anode for lithium-ion battery (LIB) was investigated. The size of synthesized hollow spheres was about 50 nm with the shell thickness of 7-8 nm. The fabricated SnO2@Co3O4 hollow nano-sphere electrode exhibited an extraordinary reversible capacity (962 mAh center dot g(-1) after 100 cycles at 100 mA center dot g(-1)), good cyclability, and high rate capability, which was attributed to the Co-enhanced reversibility of the Li2O reduction reaction during cycling.

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页码：1128 / 1136

页数：9

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