Abstract

         We will present an overview of the development of graphene and graphene-­based hybrid electrodes for batteries and supercapacitors. This will include our recent work on nanocomposites of nanocarbons with a variety of extended oxides (MnO2, CuO) as well as with molecular polyoxometalates, alike of metal oxide molecular clusters. This approach has been applied to Graphenes leading to materials with a perfect combination of properties for their use as active electrode materials in energy-­storage devices, namely, a combination of conductivity-­electroactivity as well as a combination of double-­layer capacitive energy storage (graphene) and faradaic energy storage in a single material with a dual energy storage mechanism. We will discuss examples of this type of materials and their improved energy storage properties, together with efforts for the integral development of low-­cost high-­performance electrodes based on them.