MUSIC targets a new supercapacitor technology that reaches energy density comparable to that of power batteries, but still recharges within few seconds and offers long cycle life with minimum efficiency loss over time. MUSIC incorporates a strong policy of sustainability and environmental friendliness. Thus, any use of CRM will be avoided for the development of the SIC technology and advanced novel carbonaceous electrode materials, binders and green electrolytes that are sustainable by design will be developed.