Performance of an Electrochemical double layer capacitor based on coconut shell active material and ionic liquid as an electrolyte

被引：37
|
作者：
Galinski, Maciej [1 ]
Babel, Krzysztof [2 ]
Jurewicz, Krzysztof [1 ]
机构：
[1] Poznan Univ Tech, Fac Chem Technol, PL-60965 Poznan, Poland
[2] Poznan Univ Life Sci, PL-60637 Poznan, Poland
来源：
JOURNAL OF POWER SOURCES | 2013年 / 228卷
关键词：
Room temperature ionic liquid; EMImBE(4); Electrochemical double layer capacitor (EDLC); Activated carbon; PORE-SIZE; SUPERCAPACITORS; CARBONS; TETRAFLUOROBORATE;
D O I：
10.1016/j.jpowsour.2012.11.048
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
EDLCs based on the modified coconut shell raw material were manufactured with 1-Ethy1-3-methylimidazolium tetrafluoroborate (EMImBF(4)) as an electrolyte and a typical organic electrolyte based on acetonitrile. Three types of modification of the carbon material with different micro- to mesopore ratios were applied as the positive or negative electrode and tested. Obtained results showed different characteristic capacitances of 150-350 Fg(-1), strongly dependent on the type of carbon material. Asymmetric EDLCs were manufactured from different carbon materials as positive and negative electrodes and a mass electrode fitting provided with an EDLC working at 3 V with a specific energy of 68.6 Wh kg(-1) and power density of 36 W kg(-1). (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：83 / 88
页数：6
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