ABSTRACT
Graphene, a single-layered hexagonally arranged carbon atom, has attracted considerable attention due to its unique features, such as high electrical conductivity, high specific surface area, layered structure, exceptional thermal and mechanical properties, which helps to glorify the performances of many advanced applications. Graphene has a single carbon layer having zero bandgaps without a basal plane and edges fluctuations with excellent electronic properties, which benefits many potential applications. Supercapacitors are known for their high-power delivering capabilities, good energy density and long-term cycle life. Among all materials, graphene-based materials exhibit impactful performances in developing flexible devices. The multidisciplinary approach has been implanted to develop dimensionality-controlled graphene and hierarchical structures with novel functionalities. This chapter covers synthesis methods for graphene, its structural and morphological alignments and the application of graphene-based electrodes in many flexible supercapacitor devices.
