Polypyrrole Modified Carbon Nanotube/Polyimide Electrode Materials for Supercapacitors and Lithium-ion Batteries

Lithium-ion batteries have evolved and transcended in recent years to power every device across the spectrum, from watches electrical vehicles beyond. However, lithium-ion battery requires use of heavy expensive transition metal oxides that limited life cycles. Conductive polymer nanocomposites been shown possess good electrochemical thermomechanical properties are considered be effective alternatives oxides. The fabrication polyimide matrix-single wall carbon nanotube, SWCNT composite electrode materials, modified by electrodeposition polypyrrole, PPy was successfully carried out. doping with p-Toluene sulfonic acid, T resulted a dramatic transformation morphology specific capacitance material. Electrochemical impedance spectroscopy, EIS, cyclic voltammetry, CV, galvanic charge–discharge tests were used measure electrode’s capacity. Maximum values up 84.88 F/g 127.13 obtained CV tests, respectively. A retention over 80% after 500 cycles testing. insertion doped into material polymerization positively correlate improved performance nanocomposite. An increase porosity about 34.68% non-doped polypyrrole EIS measurement supported optical microscope pictures. Increasing process parameters, such as pyrrole, Py concentration amount dopants, lead capacity electrodes.