Nanostructure Sn-Co-C composite lithium ion battery electrode with unique stability and high electrochemical performance

被引：47

作者：

Li, Meng-Yuan ^{[1
]}

Liu, Chun-Ling ^{[1
]}

Shi, Mei-Rong ^{[1
]}

Dong, Wen-Sheng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Minist Educ, Sch Chem & Mat Sci, Key Lab Appl Surface & Colloid Chem, Xian 710062, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 08期

关键词：

Lithium ion battery; Electrode; Sn-Co-C; Nanostructure; TIN-COBALT-CARBON; ANODE MATERIAL; SECONDARY BATTERIES; NEGATIVE ELECTRODES; RECHARGEABLE BATTERIES; ALLOY ELECTRODES; COMBINATORIAL; NANOPARTICLES; GRAPHITE; SYSTEM;

D O I：

10.1016/j.electacta.2010.12.102

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanostructure Sn-Co-C composites with different compositions are synthesized by a simple solution polymerization using inexpensive raw materials followed by pyrolysis in nitrogen atmosphere. The nanostructure Sn-Co-C composites are characterized using various analytic techniques. The results show that the electrochemical performances of the composites are strongly dependent on their structure and composition. Among these composites the Sn-Co-C-1 with a weight composition of Sn0.31Co0.09C0.6 exhibits high reversible capacity and excellent cycleability when used as an anode for rechargeable lithium ion batteries. This composite is composed of SnCo2, SnCo, Sn and amorphous carbon, and the nanoparticles of SnCo2. SnCo and Sn are uniformly dispersed into the amorphous carbon matrix, the average diameter of these metal nanoparticles is 8.44nm. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：3023 / 3028

页数：6

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