Sulfur-graphene composite for rechargeable lithium batteries

被引：354
|
作者：
Wang, Jia-Zhao [1 ,2 ]
Lu, Lin [1 ]
Choucair, Mohammad [3 ]
Stride, John A. [3 ]
Xu, Xun [1 ]
Liu, Hua-Kun [1 ,2 ]
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia
[2] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Wollongong, NSW 2522, Australia
[3] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia
来源：
JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 16期
基金：
澳大利亚研究理事会;
关键词：
Sulfur-graphene composite; Lithium battery; Charge/discharge; Capacity; LIQUID ELECTROLYTE; CATHODE;
D O I：
10.1016/j.jpowsour.2010.09.106
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：
Sulfur-graphene (S-GNS) composites have been synthesized by heating a mixture of graphene nanosheets and elemental sulfur. According to field emission electron microscopy, scanning electron microscopy with energy dispersive X-ray mapping, Raman spectroscopy, and thermogravimetric analysis, sulfur particles were uniformly coated onto the surface of the graphene nanosheets. The electrochemical results show that the sulfur-graphene nanosheet composite significantly improved the electrical conductivity, the capacity, and the cycle stability in a lithium cell compared with the bare sulfur electrode. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：7030 / 7034
页数：5
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