Figure 2. Superior performance of SL supercapacitors.

Characterization of supercapacitors fabricated with pCNT, SL-CNT, ESD-NaPOM-CNT, ESD-NH₄POM-CNT and ESD-HPOM-CNT and an EMIMBF₄ based membrane as a separator: (a) representative CV and (b) galvanostatic charge-discharge (GCD) curves. (c) Comparison of the total specific capacitance and specific energy density. Approximately 1.5 × 10¹³ PMo₁₂O₄₀ ³⁻ were deposited in each case. (d) Effect of PMo₁₂O₄₀ ³⁻ loading on the total specific capacitance (black) and specific Faradaic capacitance (green). (e) Capacity retention as a function of the number of GCD cycles. Current density: 8 A g⁻¹.