Gel electrolytes based on ionic liquids for advanced lithium polymer batteries

被引：71
|
作者：
Hofmann, Andreas [1 ]
Schulz, Michael [1 ,2 ]
Hanemann, Thomas [1 ,2 ]
机构：
[1] KIT, IAM WPT, D-76344 Eggenstein Leopoldshafen, Germany
[2] Univ Freiburg, Inst Mikrosyst Tech, D-79110 Freiburg, Germany
来源：
ELECTROCHIMICA ACTA | 2013年 / 89卷
关键词：
Ionic liquid; Gel polymer electrolyte; Lithium ion battery; NMC; LI-ION; VINYLENE CARBONATE; PVDF-HFP; THERMAL-BEHAVIOR; PERFORMANCE; CHALLENGES; ELECTRODES; ADDITIVES; CHEMISTRY; MEMBRANES;
D O I：
10.1016/j.electacta.2012.10.144
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new ionic liquid-based polymer gel electrolyte for lithium ion batteries is prepared by combining N-methyl-N-propylpyrrolidinium bis(trifluoromethylsulfonyl)azanide, organic carbonates, lithium bis(trifluoromethylsulfonyl) azanide, and poly(vinylidene fluoride-co-hexafluoropropylene). The conductivities of the gel electrolytes at room temperature are about 1-2 mS/cm. It is shown that the polymer gel electrolytes work effectively with a graphite anode and a LiCo1/3Mn1/3Ni1/3O2 cathode. Further it is proven that the addition of vinylene carbonate and 4-vinylpyridine considerably improves the cell performance. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：823 / 831
页数：9
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