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. 2024 Mar 9;14:5817. doi: 10.1038/s41598-024-55784-1

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© The Author(s) 2024, corrected publication 2024

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A super-capacitor has fractional order and memcapacitive properties. (A) Voltage versus Time Response to a $20 μ A$ step current for a super-capacitor stack (black) and fit to analytical solution (gray). (B) Voltage versus Charge plot in response to a voltage saw-tooth input at different frequencies. The stack consisted of four super-capacitors in series with an equivalent capacitance of 5.5 mF.