In general, the afore-mentioned objectives are attained through two conventional routes; one involves increasing capacitance, while the other revolves around widening the potential window, as expressed through the relation E=1/2CV 2 (where energy density (E) is directly proportional to the specific capacitance (C) and operating voltage (V)). Numerous factors have been identified to amplify specific capacitance, which includes frame-working the meticulous structural design and porosity, regulating the wettability, engineering of heterostructures, selection of electrolyte (ranging from aqueous, and organic to ionic and redox-additive electrolytes), and the properties of the electrodes (ranging from symmetric or asymmetric configurations) . Within the spectrum of factors, the choice of electrode materials and their construction pivotal roles in the performance of supercapacitors, and thus underscores the ongoing pursuit for innovative high-performance and economically-effective electrode materials. The reported viable electrode materials are in vast and diverse, spanning nanocarbon based materials, conducting polymers, metal ions (encompassing oxides, hydroxides, sulphides and nitrides of transition metals) and metal organic frameworks, etc . These materials are broadly classified into two types namely, electrical double layer capacitors (EDLCs) and pseudocapacitors, based on the mechanism that electric charge is stored.