Covalently Linked Polymer/Inorganic Hybrid Electrolyte with Ionic Liquid for Lithium Metal Batteries

被引：0
|
作者：
Song, Yaduo [1 ,2 ]
Jiang, Yanxin [1 ,2 ]
Hu, QingQing [1 ,2 ]
Deng, Longjiang [1 ,2 ]
Yang, Guang [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Peoples R China
[2] Univ Elect Sci & Technol China, Natl Engn Res Ctr Electromagnet Radiat Control Ma, Chengdu 611731, Peoples R China
来源：
CHEMISTRYSELECT | 2021年 / 6卷 / 32期
基金：
中国国家自然科学基金;
关键词：
polymer electrolyte; ionic liquid; oligomeric silsesquioxane; polyaddition; lithium metal battery; SOLID POLYMER ELECTROLYTE; WATERBORNE POLYURETHANE; POSS; PERFORMANCE; CONDUCTIVITY;
D O I：
10.1002/slct.202101891
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, a type of polymer/inorganic hybrid electrolytes (PIHEs) containing imidazolium-based ionic liquids (ILs) was prepared through polyaddition method. The obtained hybrid electrolytes possess excellent thermal stability (>240 degrees C), low glass transmission temperature (-46.8 degrees C) accompanied by good lithium ion transference number (t(Li+)=0.35). The interaction of Li+ ion with the HEs has been verified by Fourier Transform Infrared Spectroscopy (FTIR) tests. Furthermore, high ion conductivity (sigma) of 0.97x10(-4) S cm(-1) at 25 degrees C was found for this type of PIHEs. At the same time, stable and reversible lithium deposition and dissolution process mediated by the synthesized PIHEs was confirmed by galvanostatic plating/stripping cyclic measurements which reflected its excellent electrochemical stability. This work provides a facile way to construct PIHEs with covalent linkage and decent properties for lithium metal batteries.
引用
收藏
页码：8416 / 8421
页数：6
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