Research Article
Electrical Double-Layer Capacitor Based on Low Aqueous Electrolyte Contents in EmimTFO Ionic Liquid
Figure 7
(a) CV curves measured at different scan rates, (b) GCD curves measured at various specific currents, (c) specific capacitance and specific current relationship, (d) fitting of EIS Nyquist plot (inset equivalent series circuit), (e) phase angle as a function of frequency (with a photograph of the device powering LEDs (light-emitting diodes) in the inset). (f) Real and imaginary plots of the capacitance vs. frequency for the device assembled with [EmimTFO]0.8[2.5 M KNO3]0.2 as the electrolyte.
| (a) |
| (b) |
| (c) |
| (d) |
| (e) |
| (f) |