“…EDLCs store energy directly as the charge at the surface of electrode/electrolyte, while pseudocapacitors store energy based on faradic reaction, involving the transfer of charge across the interface between electrode and electrolyte. EDLCs' electrode materials take carbon material as the principal mechanism, mainly contain carbon nanotubes, 4 porous carbon, 5 N-doped carbon, 6,7 biomass carbon, [8][9][10][11][12] nanostructured carbon, [13][14][15][16] and graphene-based materials. 17 Pseudocapacitive electrode materials mainly include metal compounds, like Ni-based, 18 Mo-based, 19 Mn-based, [20][21][22] Co-based, [23][24][25][26][27][28][29] Ti-based, [30][31][32] and Vbased materials 30,[33][34][35][36][37][38][39][40][41] and conducting polymers, 42,43 like polyaniline, polypyrrole, and so on.…”