Three-Dimensional Porous Core-Shell Sn@Carbon Composite Anodes for High-Performance Lithium-Ion Battery Applications

被引：228

作者：

Li, Xifei ^{[1
]}

Dhanabalan, Abirami ^{[1
]}

Gu, Lin ^{[2
]}

Wang, Chunlei ^{[1
]}

机构：

[1] Florida Int Univ, Dept Mech & Mat Engn, Miami, FL 33174 USA

[2] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

来源：

ADVANCED ENERGY MATERIALS | 2012年 / 2卷 / 02期

关键词：

core-shell; lithium ion batteries; porous; Sn anode; HOLLOW CARBON; STORAGE CAPABILITIES; THIN-FILMS; TIN; INSERTION; NANOPARTICLES; NANOSPHERES; SUBSTRATE; ELECTRODE; GRAPHITE;

D O I：

10.1002/aenm.201100380

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：

A three-dimensional porous core-shell Sn@carbon anode on nickel foam substrate was fabricated by electrostatic spray deposition (ESD) technique followed by high temperature treatment. The carbon shell with a thickness of about 3.2 nm was formed on porous Sn structure at high temperature. 3D porous structure and carbon shell were designed to buffer volume expansion/shrinkage of Sn lattice upon cycling and increase the electrical conductivity. After 315 charge/discharge cycles Sn@carbon anode exhibited high specific capacity of 638 mAh g -1 with the low capacity fade of average 0.11 mAh g -1 per cycle. Sn@carbon based anodes was demonstrated to have promising potential for high performance lithium ion batteries application. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：238 / 244

页数：7

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