Fig. 3 | Microsystems & Nanoengineering

Fig. 3

From: Highly flexible, foldable, and rollable microsupercapacitors on an ultrathin polyimide substrate with high power density

Fig. 3

Frequency response, energy density, and power density of the SWCNT MSCs: a Nyquist plot (imaginary impedance Z' vs. real impedance Z") with the magnified high-frequency region shown in the inset; b real and imaginary parts (C' and C", respectively) of the stack capacitance vs. frequency; c impedance phase angle vs. frequency of a SWCNT MSC, a commercial activated carbon supercapacitor (AC-SC)37 and an aluminum electrolytic capacitor (AEC);37 d Ragone plots (energy density vs. power density) of a SWCNT MSC, a commercial 4 V/500 µAh Li thin-film battery31, a 2.75 V/44 mF AC-SC31, a 3 V/300 µF AEC31, a LSG MSC37, an OLC MSC6, and an aMP MSC36

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