Carbon coated SnO2 nanoparticles anchored on CNT as a superior anode material for lithium-ion batteries

被引：138
作者：
Ma, Chunrong [1 ]
Zhang, Weimin [1 ,2 ]
He, Yu-Shi [1 ]
Gong, Qiang [3 ]
Che, Haiying [1 ,2 ]
Ma, Zi-Feng [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai Electrochem Energy Devices Res Ctr, Shanghai 200240, Peoples R China
[2] Sinopoly Battery Res Ctr, Shanghai 200241, Peoples R China
[3] Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China
来源：
NANOSCALE | 2016年 / 8卷 / 07期
基金：
中国国家自然科学基金;
关键词：
HIGH-PERFORMANCE ANODE; IN-SITU SYNTHESIS; ONE-POT SYNTHESIS; HOLLOW NANOSPHERES; NANOTUBES; GRAPHENE; STORAGE; LAYER; SHELL; OXIDE;
D O I：
10.1039/c5nr07996a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hierarchically structured carbon coated SnO2 nanoparticles well-anchored on the surface of a CNT (C-SnO2/CNT) material were synthesized by a facile hydrothermal process and subsequent carbonization. The as-obtained C-SnO2/CNT hybrid, when applied as an anode material for lithium ion batteries (LIBs), showed a high reversible capacity up to 1572 mA h g(-1) at 200 mA g(-1) with a superior rate capability (685 mA h g(-1) at 4000 mA g(-1)). Even after 100 charge/discharge cycles at 1000 mA g(-1), a specific capacity of 1100 mA h g(-1) can still be maintained. Such impressive electrochemical performance can be mainly attributed to the hierarchical sandwiched structure and strong synergistic effects of the ultrafine SnO2 nanoparticles and the carbon coating, and thus presents this material a promising anode material for LIBs.
引用
收藏
页码：4121 / 4126
页数：6
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