The electrochemical properties of high-capacity sulfur/reduced graphene oxide with different electrolyte systems

被引：34

作者：

Wang, Yun-Xiao ^{[1
]}

Chou, Shu-Lei ^{[1
]}

Liu, Hua-Kun ^{[1
]}

Dou, Shi-Xue ^{[1
]}

机构：

[1] Univ Wollongong, ISEM, Wollongong, NSW 2519, Australia

来源：

JOURNAL OF POWER SOURCES | 2013年 / 244卷

基金：

澳大利亚研究理事会;

关键词：

Electrolyte; LiNO3; additive; Lithium-sulfur battery; S/RGO cathode; LITHIUM-SULFUR BATTERIES; CATHODE; PERFORMANCE; COMPOSITE;

D O I：

10.1016/j.jpowsour.2012.11.152

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：

The lithium/sulfur battery is a promising electrochemical system with high capacity, which is well-known to undergo a complex multistep reaction during the discharge process. Two types of electrolytes including poly(ethylene glycol) dimethyl ether (PEGDME)-based and 1,3-dioxolane (DOL)/dimethoxyethane (DME)-based electrolytes were investigated here. Furthermore, LiNO3 additive was introduced into the electrolyte in order to effectively eliminate the overcharge effect. The lithium sulfur battery with 1.0 M LiN(CF3SO2)(2) in PEGDME with 0.1 M LiNO3 shows highly stable reversible capacity of 624.8 mAh g(-1) after 200 cycles and improved average coulombic efficiency of 98%. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：240 / 245

页数：6

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