ABSTRACT
Energy storage devices such as lithium-ion batteries, supercapacitors, electronic double-layer capacitors, and pseudocapacitors are going through incessant modifications in their conduction as there is an enduring requirement for energy storage devices, which are rechargeable having very large specific energy and getting quickly charged. In this book chapter, electrochemical studies like galvanic charge and discharge, cyclic voltammetry, and electrochemical impedence spectroscopy are discussed for various metal and metal-oxide-embedded carbon nanofillers (e.g., reduced graphene oxide, graphene oxide, and graphene-based hybrid nanomaterials for energy storage and conversion applications. Basically, metals like Au and Ag and metal oxides like ZnO, CuO, TiO2, MnO2, and so on are incorporated into the carbon nanofillers to prepare nanohybrids. The electrochemical properties such as capacity, cycling stability, and rate capability are significantly improved, which have a current necessity in the industry and feasibility for future installation in an environmentally friendly way. Studies are also going on about the future prospects and challenges for the advancement in this field by the implementation of conducting polymers.
