Graphene supported Sn-Sb@carbon core-shell particles as a superior anode for lithium ion batteries

被引：130

作者：

Chen, Shuangqiang ^{[2
]}

Chen, Peng ^{[2
]}

Wu, Minghong ^{[1
]}

Pan, Dengyu ^{[1
]}

Wang, Yong ^{[2
]}

机构：

[1] Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200041, Peoples R China

[2] Shanghai Univ, Sch Environm & Chem Engn, Dept Chem Engn, Shanghai 200444, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Core-shell nanostructure; Graphene nanosheets; Lithium-ion battery; Sn-Sb; COMPOSITE ANODE; LI STORAGE; PERFORMANCE; FABRICATION; ELECTRODES; NANOSHEETS; CAPACITY;

D O I：

10.1016/j.elecom.2010.07.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper reports the preparation and Li-storage properties of graphene nanosheets(GNS), GNS supported Sn-Sb@carbon (50-150 nm) and Sn-Sb nanoparticles (5-10 nm). The best cycling performance and excellent high rate capabilities were observed for GNS-supported Sn-Sb@carbon core-shell particles, which exhibited initial capacities of 978, 850 and 668 mAh/g respectively at 0.1C, 2C and 5C (1C = 800 mA/g) with good cyclability. Besides the GNS support, the carbon skin around Sn-Sb particles is believed to be a key factor to improve electrochemical properties of Sn-Sb. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1302 / 1306

页数：5

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