Enhanced Electrochemical Stability of Sn-Carbon Nanotube Nanocapsules as Lithium-Ion Battery Anode

被引：94

作者：

Liu, Chun-jing ^{[1
]}

Huang, Hao ^{[1
]}

Cao, Guo-zhong ^{[1
,2
]}

Xue, Fang-hong ^{[1
]}

Camacho, Ramon Alberto Paredes ^{[1
]}

Dong, Xing-long ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116023, Peoples R China

[2] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

来源：

ELECTROCHIMICA ACTA | 2014年 / 144卷

基金：

中国国家自然科学基金;

关键词：

Lithium-ion battery; Carbon nanotube; Direct current arc-discharge method; Cyclic voltammetry; Electrochemical impedance spectroscopy; STORAGE PERFORMANCE; TIN; NANOCOMPOSITE; COMPOSITES; NANOPARTICLES; MICROSPHERES;

D O I：

10.1016/j.electacta.2014.07.068

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Direct current (DC) arc-discharge method is used to fabricate Sn-carbon nanotube nanocapsules (Sn-CNT NCs). The Sn is partially-filled into multi-walled CNTs, as an ideal configuration for the active materials as lithium-ion battery anode; Sn nanoparticles provide large storage capacity and CNTs confine and accommodate the volume expansion of Sn as well as provide the conductive network and contribute their own capacity. Large initial specific capacity and stable cyclic performance are identified in the electrochemical tests. Such novel nanostructure provides a solution to the volume expansion issue of a high-capacity electrode. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：376 / 382

页数：7

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