Flexible electrodes based on polypyrrole/manganese dioxide/polypropylene fibrous membrane composite for supercapacitor

► PPy/MnO2/polypropylene fibrous film (PPF) is prepared by polymerizing pyrrole in gas. ► The morphology and conductivity are influenced strongly by the content of PPy/MnO2. ► Specific capacitance of the capacitor reaches 110  F g−1 based on amount of PPy/MnO2.