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http://dx.doi.org/10.12925/jkocs.2011.28.3.10

Characteristics of high energy density hybrid capacitor using metal oxide electrode  

Yoon, Hong-Jin (Department of Chemical Engineering, Chungbuk National Univ.)
Shin, Yoon-Sung (Department of Chemical Engineering, Chungbuk National Univ.)
Lee, Jong-Dae (Department of Chemical Engineering, Chungbuk National Univ.)
Publication Information
Journal of the Korean Applied Science and Technology / v.28, no.3, 2011 , pp. 329-334 More about this Journal
Abstract
The electrochemical performances of an asymmetric hybrid capacitor were investigated using $LiFePO_4$ as the positive electrode and active carbon fibers(ACF) as the negative electrode. The electrochemical behaviors of a nonaqueous hybrid capacitor were characterized by constant current charge/discharge test. The specific capacitance using $LiFePO_4$/ACF electrode turned out to be $0.87F/cm^2$ and the unit cell showed excellent cycling performance. This hybrid capacitor was able to deliver a specific energy as high as 178 Wh/kg at a specific power of 1,068 W/kg.
Keywords
hybrid capacitor; $LiFePO_4$; organic electrolyte; ACF;
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Times Cited By KSCI : 4  (Citation Analysis)
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