Tubular array, dielectric, conductivity and electrochemical properties of biodegradable gel polymer electrolyte.

Highlights: [•] A new finding of tubular array of 10–20μm in length and 1–2μm in thickness of gel polymer electrolyte (GPE) having 2.2×10−3 Scm−1 conductivity is reported. [•] Thermal and electrochemical characterizations of GPEs show good interaction among the polymer, plasticizer and salt. [•] GPE based supercapacitor demonstrates high capacitance of 186Fg−1. [•] Low temperature studies did not influence much on capacitance values obtained from AC impedance studies. [•] Charge–discharge exhibits high capacity with excellent cyclic stability and energy density. [ABSTRACT FROM AUTHOR]