摘要
Developing high-performance electrode material with excellent flexibility still remains a big challenge.Herein,we report a simple interfacial polymerization method to fabricate interconnected polypyrrole(PPy)on a commercial nylon membrane(NM).Owing to the special and uniform microstructure of PPy/NM composite film,the free-standing electrode shows a maximal specific capacitance of 2911.4 mF cm^(-2) at 1mA cm^(-2) and superior capacitance retention of 88.7% after charge/discharge for 10,000 cycles.The symmetric all-solid supercapacitor assembled by the PPy/NM composite film exhibits outstanding cyclic stability(capacitance retention of 92.4% after 5000 cycles)and excellent flexibility(capacitance decreasing by 3.3% after bending around a rod with a diameter of 9mm for 1000 times).The results indicate that the PPy/NM composite film has great potential for high performance flexible supercapacitors.
基金
supported by the Key Program of National Natural Science Foundation of China(51632010).
