Frequency Domain Analysis For Electrochemical Supercapacitors

Valeriy Martynyuk, Denis Makaryshkin, Juliy Boyko
Abstract:
The paper deals with the problem of creating a non-linear model of the electrochemical supercapacitors and measuring their electrical parameters in wide frequency range. Formalization of the model as a non-linear equivalent circuit enables to explain non-linear behavior of electrochemical supercapacitors such as dependence of their capacity and electrical series resistance (ESR) on the different voltage levels and frequencies. In order to determine the non-linear supercapacitor equivalent circuit parameters we carry out the impedance measurements and then perform fitting of obtained measurement results by means of impedance function, which describes the electrochemical supercapacitor non-linear properties with greater accuracy.
Download:
IMEKO-TC4-2007-008.pdf
DOI:
-
Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2007
Title:
XVth IMEKO TC4 International Symposium on Novelties in Electrical Measurements and Instrumentation (together with 12th IMEKO TC4 Workshop on ADC Modelling and Testing)
Place:
Iasi, ROMANIA
Time:
19 September 2007 - 21 September 2007