SiO2/Cu/polyacrylonitrile-C composite as anode material in lithium ion batteries

被引：64

作者：

Li, Mingqi ^{[1
]}

Li, Jing ^{[1
]}

Li, Kai ^{[1
]}

Zhao, Yan ^{[1
]}

Zhang, Yongguang ^{[1
]}

Gosselink, Denise ^{[1
]}

Chen, P. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada

来源：

JOURNAL OF POWER SOURCES | 2013年 / 240卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

SiO2/Cu/PAN-C; Composite; Anode; Lithium ion battery; Electrochemical performance; SILICON NANOWIRES; ENERGY-STORAGE; PERFORMANCE; CARBON; GROWTH; ALLOY; SIO2;

D O I：

10.1016/j.jpowsour.2013.05.017

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 new SiO2/Cu/polyacrylonitrile-C composite (donated as SiO2/Cu/PAN-C) is prepared by mechanical ball milling and heat treatment of CuO-coated SiO2 and polyacrylonitrile. During heat treatment, Cu is produced by reduction of CuO and SiO2 is embedded in the matrix of Cu and PAN-C. SiO2 in the composite presents a specific capacity of 1230 mAh g(-1), and exhibits excellent cyclic stability and rate capability when cycling in the voltage range of 0.0-3.0 V. Electrochemical impedance spectra (EIS) indicate that the addition of Cu effectively improves the conductivity of electrode and diminishes interfacial impedance. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：659 / 666

页数：8

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