Long-term cycling stability of polyaniline on graphite electrodes used for supercapacitors

- Extraordinarily high stable polyaniline/graphite electrodes were prepared and they can maintain stable for 30,000 cycles without any decrease in specific capacitance values in LiClO4/propylene carbonate.
- Polyaniline morphology is changed from smooth dense film into porous morphology which is beneficial for dopants diffusion and the utility of polyaniline.
- The upper limit potential of the supercapacitor can be as high as 1.0 V in LiClO4/propylene carbonate which is beneficial for energy density and power improvement.
- Polyaniline films formed by casting solution and evaporation solvent are mechanically robust.