期刊
JOURNAL OF POWER SOURCES
卷 201, 期 -, 页码 347-352出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2011.10.106
关键词
Supercapacitors; Ultracapacitors; Electrochemical double layer capacitors; Carbon black; Inkjet printing; Ac line-filtering; Pulse supercapacitors
Carbon black supercapacitors that employ thin (similar to 1 mu m) electrodes were produced by coating and inkier printing on a conventional current collector or directly on a separator membrane. The simplicity and diversity of ultrathin electrode fabrication were facilitated by the physical form of carbon black, which can be described as a fine particle of around 100 nm in size. It was established that the performance of carbon black in thin supercapacitor electrodes may be compared with carbon nanotube and graphene materials in those instances where fast frequency response is desired from the supercapacitor. At the same time, the fast response supercapacitors that employ nanotubes and graphenes have presently involved more elaborate fabrication routes. RC time constant of 354 mu s and phase angle of -75 degrees at 120 Hz is demonstrated for carbon black supercapacitors that employ SC3 carbon black of 1800 m(2) g(-1) surface area. (C) 2011 Elsevier B.V. All rights reserved.
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