ABSTRACT
Emerging 2D-nanomaterials with unique electrochemical and physicochemical properties assure a multiplier effect on the development of flexible battery (FB) technologies. Electroactive 2D-nanomaterials provide an increased rate of diffusion path for electrolyte ions through the material, thus making them superior charge storage devices. Increase in thermal stability and uniformity especially in lithium-ion battery by preventing dendrite formation and growth, two major issues for safety in battery applications, are the excellent aspects of these materials. Furthermore, their incorporation into battery components helps to improve Young’s modulus which is required to maintain battery flexibility by acting as a composite reinforcement material. Up to now, numerous alternative 2D-nanomaterials have been developed and tested as both anode and cathode active materials as well as electrolytes. As elaborated in the whole chapter, 2D-nanomaterials used in FBs can be classified as monoelemental, transition metal-based, and polymer-based materials. With a special emphasis on graphene and graphene-based materials, 2D transition metal oxides, and transition metal dichalcogenides, detailed information on their synthesis, characterization, and electrochemical properties such as discharge capacity, cycle life, and rate-dependence are provided within this chapter, in addition to the battery design for the targeted application. Their challenges, improvement strategies, and future prospects as well as their applications are discussed in detail.
