Electrochemical impedance spectroscopy of supercapacitors: A novel analysis approach using evolutionary programming

In this contribution we present a novel approach to analyze impedance spectroscopy measurements of supercapacitors. Transforming the impedance data into frequency-dependent capacitance allows us to use Impedance Spectroscopy Genetic Programming (ISGP) in order to find the distribution function of re...

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Bibliographic Details
Main Authors: Oz Alon, Hershkovitz Shany, Tsur Yoed
Format: Conference Proceeding
Language:English
Subjects:
Distribution functions
Electrochemical impedance spectroscopy
Evolutionary algorithms
Genetic algorithms
Spectroscopic analysis
Spectrum analysis
Supercapacitors
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Summary:In this contribution we present a novel approach to analyze impedance spectroscopy measurements of supercapacitors. Transforming the impedance data into frequency-dependent capacitance allows us to use Impedance Spectroscopy Genetic Programming (ISGP) in order to find the distribution function of relaxation times (DFRT) of the processes taking place in the tested device. Synthetic data was generated in order to demonstrate this technique and a model for supercapacitor ageing process has been obtained.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4901661