Abstract
Abstract A highly flexible electrodes based on electrodeposited MnO 2 and polypyrrole composite on carbon cloth is designed and developed by a facile in-situ electrodeposition technique. Such flexible composite electrodes with multiply layered structure possess a high specific capacitance of 325 F g −1 at a current density of 0.2 A g −1 , and an excellent rate capability with a capacitance retention of 70% at a high current density of 5.0 A g −1 . The superior electrochemical performance is mainly due to the unique electrode with improved ion- and electron-transportation pathways as well as the efficient utilization of active materials and electrode robustness. The excellent electrochemical performance and the low cost property endow this flexible nanocomposite electrode with great promise in applications of flexible supercapacitors.
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