Fractional model of an electrochemical capacitor

Valeriy Martynyuk, Manuel Ortigueira

Research output: Contribution to journalArticlepeer-review


The fractional model of the electrochemical capacitor (EC) and its potential relaxation are presented. The potential relaxation occurs after charge or discharge current interruption. The EC fractional model is based on the fractional order transfer function that was obtained by means of least squares fitting of the EC impedance data. The inverse Laplace transform is used to obtain the EC impulse response. By using of the EC impulse response the EC charge and discharge simulation were performed.

Original languageEnglish
Pages (from-to)355-360
Number of pages6
JournalSignal Processing
Publication statusPublished - 2015


  • Electrochemical capacitor
  • Electrochemical impedance spectroscopy
  • Impulse response
  • Potential relaxation
  • Transfer function


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