Konjac Sponge Derived Carbon Flakes with Optimized Pore Structure for High-Performance Supercapacitor

Figure 6

Electrochemical performance of KAC-1, 2, 3, and 4 in 1 M H₂SO₄ aqueous solution. (a) CV curves at the scan rate of 5 mV/s, (b) GCD curves at 0.5 A/g, (c) specific capacitances under different current densities calculated from GCD data, and (d) Nyquist plots of the achieved samples, the inset images showed enlarged impedance at the high frequency.

(a)

(b)

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