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

页码：83 / 88

页数：6

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