A newly developed silicon supercapacitor could allow for the seamless integration of energy storage and microchips (Photo: Vanderbilt University)
Silicon chip with porous surface next to the special furnace where it was coated with graphene to create a supercapacitor electrode (Joe Howell/Vanderbilt)
The porous silicon was insulated by coating it with a thin layer of graphene (Image: Vanderbilt University)
The silicon supercapacitor showed higher energy densities than commercial devices, though they are still a long way from the energy density of lithium-ion batteries (Photo: Vanderbilt University)
On the left, the electrolyte used in the supercapacitor; in the middle, the furnace that was used to deposit graphene; on the right, a silicon supercapacitor (Photo: Landon Oakes/Vanderbilt University)
A team of researchers at the Vanderbilt University in Nashville, Tennessee has designed a supercapacitor made primarily of silicon that has shown much improved power density over its commercially available alternatives. The advance could allow for interesting integration of battery technology in everyday electronics, from solar cells to smartphones.
Other Images from this Gallery