Sn/SnO2 embedded in mesoporous carbon nanocomposites as negative electrode for lithium ion batteries

被引：72

作者：

Hassan, Fathy M. ^{[1
]}

Chen, Zhongwei ^{[1
]}

Yu, Aiping ^{[1
]}

Chen, Zhu ^{[1
]}

Xiao, Xingcheng ^{[2
]}

机构：

[1] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada

[2] Gen Motors Global Res & Dev Ctr, Warren, MI 48090 USA

来源：

ELECTROCHIMICA ACTA | 2013年 / 87卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Tin and tin oxides; Mesoporous carbon; Composites; Negative electrode; Lithium ion battery; RECHARGEABLE BATTERIES; TIN OXIDE; ANODE; PERFORMANCE; NANOTUBES; CAPACITY; STORAGE; ENERGY;

D O I：

10.1016/j.electacta.2012.09.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Mesoporous Sn/SnO2/carbon composites with uniformly Sn/SnO2 embedded within the carbon pore walls have been rationally designed and synthesized. These nanocomposites have been characterized by XRD, SEM, TEM, XPS and tested as negative electrodes in a cell using lithium foil as the counter electrode. The inclusion of metallic Sn in SnO2/CMK-3 resulted in a unique, ordered structure and provided a synergistic effect which resulted in an impressive initial reversible capacity of 799 mAh g(-1). In addition, at a higher current of 800 mA g(-1), the heterostructure was able to provide a stable capacity of 350 mAh g(-1). Furthermore, a retention capacity of similar to 670 mAh g(-1) was obtained after 60 cycles. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：844 / 852

页数：9

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