Graphene aerogels are promising for supercapacitor electrodes

Researchers from Lawrence Livermore (LLNL) developed new supercapacitor electrodes made from modified graphene aerogels. Those electrodes feature high surface area, good electrical conductivity, chemical inertness and long-term cycling stability.

The researchers report that the graphene aerogel can improve the performance of commercial carbon-based (carbon black and binder materials) supercapacitor electrodes by more than 100%. The graphene aerogel electrodes have better density and pore size distribution, and increased conductivity.

Graphene aerogel was first reported in November 2013, by a group of researchers from China's Zhejiang University. The aerogel made at Zhejiang was made from freeze-dried carbon and graphene oxide, and is reportedly the lightest material ever made.

Source: 
Posted: Oct 21,2014 by Ron Mertens