“Advanced Carbon Nanostructures” for “Advanced Supercapacitors:” What Does it Mean?

For ranking a high-tech object to a class “advanced ...,” both the object and scope of its potential application should be defined in terms of relevant characteristics and criteria. The elaboration of required criteria might speed up the technological progress. The ultimate physical limit approach is applied to the case of electrode nanostructures of double electric layer supercapacitors (SCs) required for the development of many high-tech directions. In the frame of new nanoionic fundamentals the ways for the creation of advanced carbon-based nanostructures suited for different types of SCs are proposed.