The increasing attention being given to supercapacitors is stimulated
by the prospect of using such devices as secondary power sources in el
ectric vehicle propulsion. The present study focuses on redox supercap
acitors with electronically conducting polymers as electrode materials
. Performance data of a symmetric supercapacitor based on p-doped poly
(pyrrole), of an unsymmetric supercapacitor based on both p-doped poly
(pyrrole) and poly(3-methylthiophene), and of a symmetric supercapacit
or based on p- and n-doped poly(dithieno[3,4-b : 3',4'-d]thiophene) ar
e here compared.