Dear Sirs, Could anyone please help me with the interpretation and the physical meaning of my results? I attached the EIS spectra of my supercapacitor (as prepared, after gentle electrochemical activation) and electrochemically aged. I noticed the huge differences in the Imaginary component of impedance. How can it be explained?
Is it some sort of electrochemical reaction taking place at the interface at my bias voltage (0 V, amplitude 10 mV)?
Electrodes are made of activated carbon, and an aqueous redox electrolyte is introduced.
Characterize residual charges, before and after cycling.
Relate charges, losses and the electrical and mechanical properties of materials.
Make sure your observations are original.
Don't follow models that don't apply to all observations: yours and others and do not use the foundations of physical chemistry..
Sincerely
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