NDLI: Electrical characteristics of double layer capacitor mixing Ketjenblack with surface functional group

Content Provider	IEEE Xplore Digital Library
Author	Tashima, D. Betsumiya, Y. Yoshitama, H. Otsubo, M. Maeno, S. Nagasawa, Y.
Copyright Year	2010
Description	Author affiliation: University of Miyazaki, 1-1 Gakuen Kibanadai Nishi, 889-2192, Japan (Tashima, D.; Betsumiya, Y.; Yoshitama, H.; Otsubo, M.; Nagasawa, Y.) \|\| Ketjen Black International Company, 1 Shiohama-cho, Yokkaichi, Mie 510-0851, Japan (Maeno, S.)
Abstract	In this study, a high-capacity electric double layer capacitor (EDLC) was targeted, and an influence on a capacitance by a surface functional group of Ketjenblack (KB) powder as a conducting material of a polarized electrode was examined. Existence of an oxygen functional group on a surface of a carbon electrode in EDLC is related to a capacitance increasing with faraday reaction and improvement of wettability of a water solution electrolyte to an electrode. Therefore, EDLC was evaluated with different types of KB changing with quantity of a surface functional group. As the result, wettability of water solution electrolyte to the electrode was improved by increase of the surface functional group, and the capacitance was increased because osmosis of an ion became good. It is thought that the ion was adsorbed at the deep side of pore by the removal of the surface functional group, and it led to increase the capacitance of EDLC.
Starting Page	1
Ending Page	4
File Size	641906
Page Count	4
File Format	PDF
ISBN	9781424494682
ISSN	00849162
e-ISBN	9781424494712
DOI	10.1109/CEIDP.2010.5723988
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Capacitance Carbon Surface treatment Materials Capacitors Surface impedance
Content Type	Text
Resource Type	Article

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