Nanocarbon for Flexible Energy Storage Devices

Due to their extraordinary electrical, electrochemical, and mechanical capabilities, nanocarbon materials including graphene, carbon nanotubes, and carbon nanofibers have become budding candidates for the design of flexible energy storage devices. Energy storage devices are discussed based on highlighting the properties of nanocarbon materials. The application of nanocarbon materials in various flexible energy storage technologies, such as supercapacitors and batteries is the foremost subject of the sections. The electrochemical performance of flexible energy storage systems based on nanocarbons is also discussed in this chapter, including their specific capacitance, ionic conductivity, energy density, power density, and cyclic stability. The tuning of these performances of the energy devices is based on the methods and techniques involved in material synthesis and device fabrication. A huge number of accessible electroactive sites are made available by the high surface area and electrical conductivity of nanocarbon materials, which can store charge and boost the device's energy storage capacity. In order to improve the efficiency of the energy storage device, nanocarbon materials can also be utilized in the separator. Due to their exceptional mechanical strength, thermal stability, and ionic conductivity, graphene oxide (GO) and reduced graphene oxide (rGO) have been analyzed as possible materials for separators.