Directly electrospun electrodes for electrical double-layer capacitors from carbide-derived carbon

This work aims towards the optimization of porous carbon saturated nanofibres composition for electrical-double layer (EDL) electrode's preparation. The properties of microporous carbide-derived carbon (CDC) based electrospun electrodes are discussed. The variable electrode composition and thei...

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Bibliographic Details
Published in:Journal of electrostatics 2020-01, Vol.103, p.103396, Article 103396
Main Authors: Malmberg, Siret, Arulepp, Mati, Savest, Natalja, Tarasova, Elvira, Vassiljeva, Viktoria, Krasnou, Illia, Käärik, Maike, Mikli, Valdek, Krumme, Andres
Format: Article
Language:English
Subjects:
Carbide-derived carbon
EDL capacitance
Electrospinning
Ionic liquid
Polyacrylonitrile
Specific energy
Supercapacitor
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Summary:This work aims towards the optimization of porous carbon saturated nanofibres composition for electrical-double layer (EDL) electrode's preparation. The properties of microporous carbide-derived carbon (CDC) based electrospun electrodes are discussed. The variable electrode composition and their mechanical properties were observed to obtain the highest EDL capacitance. Effect of densification pressure and -temperature of electrospun electrodes are discussed. Thin electrode layer enables faster charge-discharge capability and perform higher power with same consumption of electrode materials. The EDL capacitance of 114 Fg-1, determined by cyclic voltammetry method within the voltage range of 0–2.7 V, was achieved. •Fibrous electrodes were produced from carbon saturated solution by electrospinning.•Densifiation of fibrous electrodes has great influence on their electrochemical behaviour.•The optimum ratio between carbide-derived carbon, carbon black and polymer gives specific capacitance up to 114 Fg-1.
ISSN:0304-3886
1873-5738
DOI:10.1016/j.elstat.2019.103396