From ScienceDaily
Engineers have achieved a significant advance in the international effort to create energy storage technologies that combine rapid charging with strong power output, paving the way for next-generation systems in electric transportation, grid support and everyday electronics.
Supercapacitors are a developing category of energy storage devices that rely on electrostatic charge storage instead of the chemical reactions used in batteries. A long-standing challenge has been that only a small share of the carbon surface area needed for energy storage has been usable.