Electrochemical synthesis and capacitance properties of a novel poly(3,4-ethylenedioxythiophene bis-substituted bithiophene) electrode material.

Highlights: [•] A novel 3,4-ethylenedioxythiophene bis-substituted bithiophene (BEDOT-BT) was synthesized. [•] BEDOT-BT was further electropolymerized into PEDOT-BT polymer. [•] PEDOT-BT had high thermal stability and electrochemical cycling stability. [•] The specific capacitance of PBEDOT-BT electrode reached 171 F g−1 at 1 A g−1. [ABSTRACT FROM AUTHOR]