Gel Polymer Electrolytes Based on Polymerizable Lithium Salt and Poly(ethylene glycol) for Lithium Battery Applications

被引：53
作者：
Baik, Ji-Hoon [1 ,2 ]
Kim, Sangwan [1 ,2 ]
Hong, Dong Gi [1 ,2 ]
Lee, Jong-Chan [1 ]
机构：
[1] Seoul Natl Univ, Sch Chem & Biol Engn, 1 Gwanak Ro, Seoul 08826, South Korea
[2] Seoul Natl Univ, Inst Chem Proc, 1 Gwanak Ro, Seoul 08826, South Korea
来源：
ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 33期
基金：
新加坡国家研究基金会;
关键词：
lithium battery; gel polymer electrolyte; polymerizable lithium salt; lithium ion transference number; polyelectrolyte gel; radical polymerization; COMPOSITE ELECTROLYTES; ION; PEO; PERFORMANCE; COPOLYMERS; MONOMERS;
D O I：
10.1021/acsami.9b05139
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Here, a polymerizable lithium salt, lithium (trifluoromethanesulfonyl)(vinylsulfonyl)imide, was synthesized and used to prepare cross-linked gel polymer electrolyte systems with poly(ethylene glycol) methyl ether methacrylate as an ion conducting moiety, poly(ethylene glycol) dimethacrylate as a cross-linker, and propylene carbonate as a liquid electrolyte without adding any conventional inorganic lithium salt. The gel polymer electrolytes prepared in this study exhibited a reasonably high ionic conductivity (6.7 x 10(-4) S cm(-1) at 25 degrees C and 1.8 X 10(-3) S cm(-1) at 60 degrees C) and lithium-ion transference number (0.52), and the lithium battery prepared using the gel polymer electrolyte showed a stable cycling performance over 50 cycles.
引用
收藏
页码：29718 / 29724
页数：7
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