Cooperative enhancement of capacities in nanostructured SnSb/carbon nanotube network nanocomposite as anode for lithium ion batteries

被引：40

作者：

Fan, Shufen ^{[1
]}

Sun, Ting ^{[1
]}

Rui, Xianhong ^{[1
,2
]}

Yan, Qingyu ^{[1
,3
]}

Hng, Huey Hoon ^{[1
,3
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore

[3] Nanyang Technol Univ, Energy Res Inst NTU, Singapore 638075, Singapore

来源：

JOURNAL OF POWER SOURCES | 2012年 / 201卷

关键词：

Tin antimony; Carbon nanotubes; Nanocomposite; Melt spinning; Lithium ion batteries; X-RAY-DIFFRACTION; CARBON NANOTUBE; COMPOSITE ELECTRODES; INSERTION; PERFORMANCE; CONVERSION; KINETICS; SIZE;

D O I：

10.1016/j.jpowsour.2011.10.137

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：

SnSb-carbon nanotube nanocomposites are prepared by mixing melt-spun nanocrystalline SnSb with carbon nanotubes. The composite with 10 wt% acid functionalized CNTs shows a good initial Coulombic efficiency of 79% and a reversible capacity of 860 mAhg(-1) during the 40th cycle at a current density of 160 mAg(-1). Apart from that, the composite also shows promising capacities at high Crates. The enhancement is attributed to the synergistic effect between the nanocrystalline SnSb alloy and the CNT scaffold, which buffers the pulverization process and facilitates fast lithium ions diffusion. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：288 / 293

页数：6

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