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Modeling of Electrochemical Double Layer Capacitors by Means of Fractional Impedance

[+] Author Affiliations
Rodolfo Martín, Jose J. Quintana, Alejandro Ramos, Ignacio de la Nuez

Las Palmas de Gran Canaria University, Canary Island, Spain

Paper No. DETC2007-35235, pp. 1397-1403; 7 pages
doi:10.1115/DETC2007-35235
From:
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4806-X | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME

abstract

The application of the fractional calculus for modeling electrochemical double layer capacitors is a novel way to get simpler and precise models. By means of the method of impedance spectroscopy, experimental results for different values of these have been obtained. In this paper several classical mathematical models are studied and a different method is introduced in order to get a model from electrochemical double layer capacitors. This method is based on distinct models with fractional elements and the fitted of experimental data is realized with few parameters and minimal error. Finally, is proposed a model based in Havriliak-Negami function which achieves an excellent fitted on the over-all frequencies analyzed.

Copyright © 2007 by ASME

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