A High‐Performance Flexible Supercapacitor Anode Based On Polyaniline/Fe3O4 Composite@Carbon Cloth

Abstract Herein, we report for the first time, the synthesis of a binder‐free flexible Polyaniline ( PANI ) and Iron Oxide ( Fe 3 O 4 ) nanocomposite ( PANI/Fe 3 O 4 ) electrode by the direct growth of active materials over carbon cloth. The carbon cloth substrate, with its three‐dimensional porous structure, provides more electrolyte accessibility and acts as an effective conductive pathway for efficient electrical transport between the active materials and the current collector. The PANI/Fe 3 O 4 nanocomposite electrode exhibits a maximum specific capacitance of 365 F g −1 in a stable potential window ranging from −1 V to 0 V. Also it retains a cycling stability of 91% even after 4000 charge‐discharge cycles at a constant current density of 5 A g −1 . These results indicate that PANI/Fe 3 O 4 nanocomposite electrode has a significant potential as an inexpensive anode for future electrochemical energy storage systems.