ABSTRACT

Core–shell nanostructure received substantial attention in various energy storage devices such as batteries, pseudocapacitors, hydrogen storage, and so on, due to their extraordinary properties. The core–shell structure is mimicking nature by possessing high porosity, and large surface area with uniform and high distribution of active materials. The presence of the structural supports for fast interfacial transport with shortening diffusion path. The present review describes the different synthesis strategies and different structures with different materials supported for core–shell structure. The resultant properties and current applications of supercapacitor were analyzed elaborately. It includes a detailed emphasis on designing of innovative structures with progressive properties and performance in a supercapacitor. This chapter proposes an outlook and challenges in the controlled development of core–shell nanostructure materials.