Specific performance of electrical double layer capacitors based on different separator materials in room temperature ionic liquid

被引：54

作者：

Tonurist, K. ^{[1
]}

Thomberg, T. ^{[1
]}

Jaenes, A. ^{[1
]}

Kink, I. ^{[2
]}

Lust, E. ^{[1
]}

机构：

[1] Univ Tartu, Inst Chem, EE-50411 Tartu, Estonia

[2] Estonian Nanotechnol Competence Ctr, EE-51014 Tartu, Estonia

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2012年 / 22卷

关键词：

Separator materials; Electrospinning; Electrical double layer capacitor; Carbide-derived carbon; Specific energy and power; Ionic liquid; CARBIDE-DERIVED CARBON; ELECTROCHEMICAL CHARACTERISTICS; NANOPOROUS CARBON;

D O I：

10.1016/j.elecom.2012.05.029

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Influence of the separator material characteristics on the performance of electrical double layer capacitors (EDLCs), based on the two identical ideally polarizable microporous titanium carbide-derived, carbon electrodes in room temperature ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate), has been tested by cyclic voltammetry. constant power and electrochemical impedance spectroscopy methods. Self-made separator materials have been prepared from poly(vinylidene fluoride) solutions in N,N-dimethylacetamide or N,N-dimethylformamide and acetone mixture (8:2 mass ratio) by using the electrospinning: method. Noticeable influence of the separator porosity and chemical composition on the limits of ideal polarizability, specific capacitance, equivalent series resistance, phase angle, specific energy and power of the EDLCs has been obtained and discussed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：77 / 80

页数：4

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