Robust conductive polymer grafted carbon cloth via solvothermal polymerization for flexible electrochemical devices

Abstract

Flexible electrodes have been widely investigated in wearable electronic devices, which cycling stability and flexibility are determined by the flexible conductive substrates, electroactive materials, and their interfaces. Here, a conductive polymer with superior chemical and structural stability, poly(1,5-diaminoanthraquinone) (PDAA), has been grafted onto the oxidized carbon cloth (OCC) via highly efficiently solvothermal polymerization. The robust PDAA grafted carbon cloth (OCC-PDAA) was obtained as flexible electrode for supercapacitors, possessing a capacitance of 386.3 mF cm−2, power density of 188.0 mW cm−2 and energy density of 34.4 mWh cm−2 at 0.50 mA cm−2, with superior capacitance retention of 99.1% and 96.5% after 10000 CV cycles and 180°-bending for 300 cycles, respectively. Such superior comprehensive electrochemical performance makes it a promising candidate for practical application.