Solid polymer electrolytes with sulfur based ionic liquid for lithium batteries

被引：46
|
作者：
Fisher, Aaron S. [2 ]
Khalid, Mian B. [1 ]
Widstrom, Matthew [3 ]
Kofinas, Peter [1 ]
机构：
[1] Univ Maryland, Fischell Dept Bioengn, College Pk, MD 20742 USA
[2] Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20742 USA
[3] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
来源：
JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 22期
关键词：
Lithium battery; Triethylsulfonium bis(trifluorosulonyl) imide; Polymer electrolytes; Ionic liquids; GEL ELECTROLYTES; LOW-VISCOSITY; CONDUCTIVITY; SALTS;
D O I：
10.1016/j.jpowsour.2011.07.081
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 electrochemical properties of a solid hybrid polymer electrolyte for lithium batteries based upon tri-ethyl sulfonium bis(trifluorosulfonyl) imicle (S2TFSI), lithium TFSI, and poly(ethylene oxide) (PEO) is presented. We have synthesized homogenous freestanding films that possess low temperature ionic conductivity and wide electrochemical stability. The hybrid electrolyte has demonstrated ionic conductivity of 0.117 mS cm(-1) at 0 degrees C, and 1.20 mS cm(-1) at 25 degrees C. At slightly elevated temperature ionic conductivity is on the order of 10 mS cm(-1). The hybrid electrolyte has demonstrated reversible stability against metallic lithium at the anodic interface and >4.5 V vs. Li/Li+ at the cathodic interface. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：9767 / 9773
页数：7
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