▎ 摘　　要

Textile-based, flexible, all-solid-state supercapacitors are in high demand for short-term power backup and future wearable applications. Here we report a one-step spray technique to fabricate large-area flexible electrodes using poly(3,4-ethylene dioxythiophene) polystyrene sulfonate (PEDOT: PSS), reduced graphene oxide (rGO), and carbon cloth (CC). H3PO4-treated CC/PEDOT: PSS and CC/PEDOT:PSS-rGO electrodes exhibit enhanced capacitance, high rate capability, and a wide voltage window (0-2.0 V). The CC/PEDOT: PSS and CC/PEDOT: PSS-rGO(20 wt%) electrodes exhibit respective specific capacitances of similar to 73 and similar to 170 F g(-1) at 10 mV s(-1), with energy and power densities of 2.6Wh kg(-1) and 2880 W kg(-1) and of 11.0 Wh kg(-1) and 4460 W kg(-1), respectively. The device with a 25.0 cm(2) active area display capacitances of similar to 6.5 and similar to 5.5 F per electrode at mass loadings of 4.0 and 2.4 mg cm(-2), respectively. The CC/PEDOT:PSS-rGO devices have excellent cyclic and bending stability, with capacitance retention of similar to 100% after 2000 cycles and of similar to 95% under bending of radius 0.5 mm. A fully charged compound device of three devices connected in series is able to power white and green LEDs. (c) 2018 Elsevier Ltd. All rights reserved.