“…ASCs especially usually combine advantages of the two different types of electrodes, which can provide a high capacitance and a long cycle life [ 4 ]. As a main component of SCs, various electro-active materials have been explored, such as carbonaceous materials (carbon nanotubes [ 5 , 6 , 7 ] (CNTs), graphene [ 8 , 9 ] and active carbon [ 10 ]), transition metal-based materials (RuO 2 [ 11 ], MnO 2 [ 12 ], NiO [ 13 ], Co 3 O 4 [ 14 ]), sulfides [ 15 ], metal selenides [ 16 ] and conducting polymers (PANI [ 17 ], PPy [ 18 ], PEDOT [ 19 ]).…”