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http://dx.doi.org/10.9713/kcer.2016.54.3.293

Electrochemical Properties of Activated Carbon Supercapacitors Adopting Hydrophilic Silica and Hydrogel Electrolytes  

Lee, Hae Soo (Department of Chemical and Biological Engineering, Hanbat National University)
Park, Jang Woo (Department of Chemical and Biological Engineering, Hanbat National University)
Lee, Yong Min (Department of Chemical and Biological Engineering, Hanbat National University)
Ryou, Myung Hyun (Department of Chemical and Biological Engineering, Hanbat National University)
Kim, Kwang Man (Research Section of Power Control Devices, Electronics & Telecommunications Research Institute (ETRI))
Ko, Jang Myoun (Department of Chemical and Biological Engineering, Hanbat National University)
Publication Information
Korean Chemical Engineering Research / v.54, no.3, 2016 , pp. 293-298 More about this Journal
Abstract
A hydrogel electrolyte consisting of 6 M KOH aqueous solution, potassium polyacrylate (PAAK, 3 wt.%), and a hydrophilic silica OX50 (1 wt.%) was prepared to use as an electrolyte medium coated on a Scimat separator of activated carbon supercapacitor. The silica particle distributed homogeneously on surface pores of the separator to increase ionic conductivity and electrochemical stability of the hydrogel electrolyte. The silica addition also involved superior specific capacitance even at higher scan rates due to decrease in interfacial resistance between hydrogel electrolyte and activated carbon electrode.
Keywords
Hydrophilic silica; Hydrogel electrolytes; Activated carbon supercapacitor; Electrochemical properties;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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