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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.
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  • DOI:
    _unreg_tc4-2007.008

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