Binder free, Graphene/ MnO2 nanowire – Graphene/ V2O5 composite electrodes for hybrid supercapacitors

摘要

Among different types of energy storage systems, supercapacitors play an important role in energy storage. Recently, supercapacitors have been widely explored for energy storage due to their superior balance of energy and power densities.1 The ability to deliver higher power than batteries and store more energy than conventional capacitors makes them ideal for high energy and power applications. There are two types of supercapacitors, which are known as electric double-layer capacitors (EDLCs) and pseudocapacitors.2