Manganese dioxide nanorod arrays on carbon fabric for flexible solid-state supercapacitors

Abstract We reported the synthesis of large-area manganese oxide nanorods (MONRAs) on carbon fabric and their implementation as flexible supercapacitors. Electrochemical measurements demonstrated that MONRAs exhibited a high capacitance (678 F g −1 at a current density of 0.3 A g −1 ) with high flexibility and excellent cycle performance (less than 3% capacitance loss after 10,000 cycles). Furthermore, the fabricated solid-state devices based on these MONRAs electrodes exhibited good electrochemical performance and could power a red LED well for about 5 min after charging at 0.5 mA cm −2 for 30 s, with an energy utilization efficiency of about 80%. These findings show that MONRAs are a kind of very promising electrode material for flexible supercapacitors.

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