A flexible solid-state supercapacitor based on a poly(aryl ether ketone)–poly(ethylene glycol) copolymer solid polymer electrolyte for high temperature applications

Here in we fabricated a high temperature flexible solid-state supercapacitor based on PAEK–PEG copolymers solid polymer electrolyte. As fabricated supercapacitor has excellent electrochemical performance at various operating temperature especially high temperature (120 °C).