University of California, Los Angeles
Graphene Supercapacitors: Charging Up the Future
Location: EB1 Room 1011
Friday, April 11th 2014 - 11:00 am
Batteries run just about everything portable in our lives such as smartphones, tablets, computers, etc. While we have become accustomed to the rapid improvement of portable electronics, the slow development of batteries is holding back technological progress. Using a consumer grade LightScribe DVD burner, we have developed graphene supercapacitors that are compact, reliable, and energy dense, charge quickly, and possess both long cycle life and calendar life. These supercapacitors can be miniaturized to the microscale and readily integrated on silicon chips for the next generation of portable electronics. The new micro-supercapacitors can be fully charged in less than a second, and when coupled with a battery, could provide enough energy to run a cell phone for days. In addition, by combining graphene with conducting polymers and metal oxides, we demonstrate pseudo-capacitors and hybrid supercapacitors that can store even more charge. I will also highlight our efforts with Maxwell Technologies to move this technology from the laboratory to the industrial scale.