PANI/PC@CC composite flexible electrode was prepared by potentiostatic in-situ electrodeposition of polyaniline/porous carbon (PANI/PC) on the surface of carbon cloth (CC). The effects of preparation conditions on the structure and capacitive performance of PANI/PC@CC were discussed. The results showed that porous carbon could effectively improve the rate capacity and cycle performance of PANI/PC@CC which also exhibited good flexibility. PANI/PC@CC obtained under optimal conditions had a specific capacitance up to 3 042.8 mF/cm2 at 1 mA/cm2, as well as a rate capacity up to 88.0% at 20 mA/cm2, and the capacitance retention was as high as 97.6% after 2 000 charge/discharge cycles at 15 mA/cm2, demonstrating an excellent capacitive property. Finally, PANI/PC@CC-based flexible symmetric supercapacitor also demonstrated an excellent electrochemical performance and flexibility.
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