Porous Si coated with S-doped carbon as anode material for lithium ion batteries

被引：32

作者：

Yue, Lu ^{[1
,2
]}

Zhong, Haoxiang ^{[1
]}

Tang, Daoping ^{[1
]}

Zhang, Lingzhi ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Renewable Energy & Nat Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2013年 / 17卷 / 04期

基金：

美国国家科学基金会;

关键词：

Porous Si; Magnesiothermic reaction; S-doped carbon; Lithium ion battery; SILICON NANOCOMPOSITES; ELECTRODE MATERIALS; SPRAY-PYROLYSIS; STORAGE; NANOPARTICLES; FTIR; SPECTROSCOPY; NANOWIRES; COMPOSITE;

D O I：

10.1007/s10008-012-1944-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel porous Si/S-doped carbon composite was prepared by a magnesiothermic reaction of mesoporous SiO2, subsequently coating with a sulfur-containing polymer-poly(3,4-ethylene dioxythiophene), and a post-carbonization process. The as-prepared Si composite was homogeneously coated with disordered S-doped carbon with 2.6 wt.% S in the composite and retained a high surface area of 58.8 m(2) g(-1). The Si/S-doped carbon composite exhibited superior electrochemical performance and long cycle life as an anode material in lithium ion cells, showing a stable reversible capacity of 450 mAh g(-1) even at a high current rate of 6,000 mA g(-1).

引用

页码：961 / 968

页数：8

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