Theoretical analysis of the performance of a model supercapacitor consisting of metal oxide nano-particles |
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Authors: | Hossein Farsi Fereydoon Gobal |
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Institution: | (1) Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran |
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Abstract: | The factors influencing the electrochemical behaviour of a supercapacitor have been partly examined in this work. The effects
of so-called intrinsic parameters, i.e. exchange current density, unit cell length and double layer (DL) capacitance; as well
as the so-called application parameters, i.e. cell current, on the cell potential discharge time have been considered. The
contributions of each type of capacitors, DL capacitor and faradaic supercapacitor under various states of operation and material
have been analyzed, and the competing (compensating) effects of the two types of capacitors as regards to the discharge and
power characteristics manifested by current–potential and energy–power (Ragone plots) are elucidated. |
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Keywords: | Supercapacitor Ragone plot Discharge curve Double layer current Faradaic current Metal oxide nano-particles |
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