Sulfur-graphene composite for rechargeable lithium batteries

被引：355

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

页码：7030 / 7034

页数：5

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