Australia has supercapacitors made from graphene oxide. They can can store as much energy per kilogram as a lithium battery, but charges in minutes, or even seconds, and uses carbon instead of ...

Moving ions doesn’t degrade the supercapacitor, so it can charge millions of times, in theory. Usually, a supercapacitor can work for at least 10,000 life-cycles.” That “in theory” is important. The ...

A major stumbling block in the development of high energy density graphene-based supercapacitors has been maintaining high ion-accessible surface area combined with high electrode density. Herein, we ...

We use colloidal gels of graphene oxide in awater-ethanol-ionic liquid solution to assemble graphene-ionic liquid laminated structures for use as electrodes in electrochemical double layer capacitors.

Research Highlight Published: 25 January 2010 Metal-oxide supercapacitors: Pumped up NPG Asia Materials (2010) Cite this article ...

Although they’re still waiting on 50 tons of gamma ferric oxide from their supplier in Minnesota, they have recently acquired 11 tons of the stuff. “But it’s not a train, it’s trucks from ...

Posted: Apr 30, 2012 High-performing supercapacitor electrodes made from self-organizing cobalt oxide nanowires (Nanowerk Spotlight) Commercially available supercapacitors store energy in two closely ...