Performance Comparison of Reduced Graphene Oxide (rGO)-polyaniline (PANI) Supercapacitors with LiCl, Li2SO4, and H2SO4 Electrolytes

Reduced graphene oxide (rGO)-polyaniline (PANI) supercapacitors (SCs) are tested with 1 M LiCl, Li 2 SO 4 , and H electrolytes. The SC performance is evaluated by electrical impedance spectroscopy, cyclic voltammetry (CV), galvanostatic charging/discharging measurements. Electrochemical experiments indicate that rGO-PANI SCs lithium salt electrolytes show a large pseudocapacitance (PC) effect whereas electrolyte shows double-layer capacitance (EDLC) effect. has the largest areal of 48.83 mF/cm those LiCl have capacitances 31.69 22.35 respectively. After 10,000-cycle CV stability test, some ion embedding, resulting in better cycling than