Polymeric ionic liquid membranes as electrolytes for lithium battery applications

被引：10
|
作者：
Li, Mingtao [3 ]
Dong, Siming [2 ]
Fang, Shaohua [1 ,2 ]
Yang, Li [1 ,2 ]
Hirano, Shin-ichi [1 ]
Hu, Jiayang [3 ]
Huang, Xinming [3 ]
机构：
[1] Shanghai Jiao Tong Univ, Hirano Inst Mat Innovat, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China
[3] Xi An Jiao Tong Univ, Dept Chem Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2012年 / 42卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Polymeric ionic liquids; Guanidinium ionic liquids; Polymer electrolytes; Lithium batteries; SENSITIZED SOLAR-CELLS; ALKYLIMIDAZOLIUM CATIONS; TEMPERATURE;
D O I：
10.1007/s10800-012-0450-0
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new kind of polymeric ionic liquid (PIL) membrane based on guanidinium ionic liquid (IL) with ester and alkyl groups was synthesized. On addition of guanidinium IL, lithium salt, and nano silica in the PIL, a gel PIL electrolyte was prepared. The chemical structure of the PIL and the properties of gel electrolytes were characterized. The ionic conductivity of the gel electrolyte was 5.07 x 10(-6) and 1.92 x 10(-4) S cm(-1) at 30 and 80 degrees C, respectively. The gel electrolyte had a low glass transition temperature (T-g) under -60 degrees C and a high decomposition temperature of 310 degrees C. When the gel polymer electrolyte was used in the Li/LiFePO4 cell, the cell delivered 142 mAh g(-1) after 40 cycles at the current rates of 0.1 C and 80 degrees C.
引用
收藏
页码：851 / 856
页数：6
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