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http://dx.doi.org/10.5762/KAIS.2012.13.12.5647

Development of an Electro Impedance Spectroscopy device for EDLC super capacitor characterization in a mass production line  

Park, Chan-Hee (Chonbuk National University Automobile Parts & Mold Technology Innovation Center)
Lee, Hye-In (Chonbuk National University Automobile Parts & Mold Technology Innovation Center)
Kim, Sang-Jung (VNI Corporation)
Lee, Jung-Ho (Chonbuk National University Automobile Parts & Mold Technology Innovation Center)
Kim, Sung-Jin (Chonbuk National University Automobile Parts & Mold Technology Innovation Center)
Lee, Hee-Gwan (Chonbuk National University Automobile Parts & Mold Technology Innovation Center)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.12, 2012 , pp. 5647-5654 More about this Journal
Abstract
In this paper, we developed an electro impedance spectroscopy (EIS) device, which are primarily used for the analysis of fuel cells or batteries, to widen its coverage to the next generation super capacitor EDLC characterization. The developed system was composed of a signal generator that can generate various signal patterns, a potentiostatic generator, and a high speed digital filter for signal processing and measurement program. The developed system is portable, which is not only suitable laboratory use but also for mass production line. The special features of the system include a patterned output signal from 0.01 to 20 kHz, and a fast Fourier transform (FFT) analysis of current signals, both of which are acquired simultaneously. Our tests showed similar results after comparing the analysis from our newly-developed device showing the characteristics of EDLC complex impedance and the analysis from an equivalent impedance which was applied to an equivalent circuit. Now, we can expect a fast inspection time from the application of the present system to the super capacitor production line, based on time-varying changes in electrochemical impedance.
Keywords
EDLC super capacitor; Fast fourier transform; Impedance Spectroscopy; LabVIEW;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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