Graphene-based capacitors demonstrated in electric bicycles

Researchers from Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT) of the Chinese Academy of Sciences have developed high performance LICs (lithium ion capacitors) using graphene- based composites as electrodes. 

The researchers also developed LICs with a capacity of 150F, 1000F, 2000F and 3500F. The energy densities are above 45 Wh/L based on the volume of the cell. After 20,000 cycles of charge/discharge, the ratio of the capacity retention is as high as 84.3%.

 

The LICs have even been successfully applied to electric bicycles, but might also be useful for applications like energy recovery systems or start power in transportation systems, such as electric vehicles, high speed rail and inter-city rail transit.  

Posted: Feb 16,2015 by Roni Peleg