Figure 2
From: Carbon Nanotube Reinforced Structural Composite Supercapacitor
Electrochemical characterization of the structural supercapacitor. (a) CV curves from 20 mV/s to 100 mV/s for a composite structural supercapacitor with a Kevlar separator. (b) Volumetric and specific capacitance calculated from CV curves for the composite supercapacitors. (c) Charge/discharge curves for charging currents ranging from 1.5–8 mA/cm3. (d) Five consecutive charge-discharge measurements for the composite at 3.2 mA/cm3. (e) Ragone plot showing specific energy and power density of CNT-Steel mesh performance with a Kevlar separator and a 100% IL electrolyte and an Epoxy-IL electrolyte compared to the liquid/solid state performance of the best structural supercapacitor composites in literature. (f) Ragone plot for the same data in the context of volumetric performance compared to carbon aerogels.
