I have measured the current of a supercapacitor by Cyclic Voltammetry. When I am using Dunn method to differentiate the capacitive current, towards the peak values, the capacitive current is exceeding the total current, which looks absurd. Is there any other way to obtain the capacitive current from the cyclic voltammogram?
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An-Giang Nguyen
It is a limit/mistake of this method. You may find the proper way in the following article:
1.Article Determination of the morphology factor of oxide layers
2.https://www.researchgate.net/post/How_to_determine_the_the_potential_window_of_the_non-faradic_region
3.https://www.researchgate.net/post/How_can_I_calculate_the_resistance_and_capacitive_percentage_from_CV_curve_for_the_supercapacitor_electrode
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