Electrical Double-Layer Capacitor Based on Low Aqueous Electrolyte Contents in EmimTFO Ionic Liquid

Figure 8

(a) Coulombic efficiency against a number of cycles, (b) capacitance retention against a number of cycles, and (c) Ragone plot comparing the device assembled using 2.5 M KNO₃, EmimTFO, and 0.8 molar fraction diluted EmimTFO mixture.

(a)

(b)

(c)