ABSTRACT
The increasing energy demands impel lots of research on eco-friendly materials for the energy harvesting and storage technologies. In the case of supercapacitors, the most important aspect is the designing of electrode materials with high electrochemical capabilities. The layered materials have been attracting a lot of attention due to their composition, structure, and morphology. The various integrated work has been done in the preparation of electrode materials based on the layered metal oxides and hydroxides because it provides excellent morphology without sacrificing the electrochemical performances, high porosity, low cost, and abundant feasible practical advancements. Herein, the chapter describes the basic terms of supercapacitors with the electrode materials prepared from layered metal oxides and hydroxide tunable structures. The recent advancement of layered metal oxides and hydroxides and their feasible and practical applications for the composition of flexible and solid-state devices are also discussed. In addition, we have discussed the practical ability of layered materials for the composition of supercapacitive devices in terms of tuning composition, structure, and design of electrode materials to assemble. Through the various fruitful efforts of scientists, the layered metal oxides and hydroxide-based materials have been greatly emphasized as competitive materials for modern energy storage applications.
