Synthesis and Characterization of Polyindole–NiO-Based Composite Polymer Electrolyte with LiClO4

Abstract

There has been an increasing interest in synthesizing the novel composite polymer electrolyte (CPE) for use in lithium batteries in recent years. This paper describes the preparation and characterization of CPE containing lithium perchlorate based on polyindole–NiO nanocomposite. NiO nanoparticles were added to the monomer solution before the polymer formation in the presence of a surfactant to get the PInNiO nanocomposite. The thermal properties, surface morphology, and structural studies of the electrolyte were investigated by TGA, SEM, TEM, and XRD. An enhanced conductivity of 2.62 × 10−4 S cm−1 at 45°C for the composite polymer electrolyte was determined from impedance studies.