ABSTRACT
The impending deficit of conventional energy sources like fossil fuels and escalating environmental desolations increase the need to formulate competent renewable energy solutions. With the fast-growing renewable energy market, the demand for an efficient, high-performance energy-storage device is soaring. Supercapacitors are electrochemical energy-storage systems with high specific power and relatively lower specific energy when compared to batteries. Hybrid supercapacitors are emerging device configurations developed via a synergistic blend of battery and supercapacitor, which offers an avenue for realizing high-energy and high-power proficiencies. Electrode materials play pivotal role in determining the supercapacitor device performance. The evolution in nanoscience has presented the prospect of controlling and fine-tuning the physicochemical and surface properties of the materials in the nanoscale to achieve desirable surface-active sites, and related properties. The fundamental concepts and developments in electrode architectures and engineering aspects of hybrid supercapacitors are unfolded. In brief, this chapter offers a perspective on the progress and plausible futuristic electrode materials for hybrid supercapacitors.
