Clay key for better supercapacitors

A composite of clay and an electrolyte serves as both electrolyte and a separator in a supercapacitor. Photo credit: Ajayan Group/Rice University

A composite of clay and electrolyte serves as both electrolyte and separator in a supercapacitor. Photo credit: Ajayan Group/Rice University

Supercapacitors have been in the news a lot recently, with researchers and investors alike hoping they can combine the rapid charging and high energy densities of conventional capacitor devices with the slow release of energy associated with batteries.
Read more →