Effect of NiO nanofiller concentration on the properties of PEO-NiO-LiClO 4 composite polymer electrolyte

• Main Authors: Fahmi E.M., Ahmad A., Rahman M.Y.A., Hamzah H.
• Other Authors: 54953823300
• Format: Article
• Published: 2023
• Subjects: Composite polymer electrolyte; Ionic conductivity; Lithium perchlorate; Nickel oxide; Poly(ethylene oxide); Electrolytes; Filled polymers; Fillers; Inorganic compounds; Lithium; Oxide films; Polyethylene oxides; Polymer films; Polymers; Scanning electron microscopy; Sol-gel process; X ray diffraction; Amorphous phase; Composite polymer electrolytes; Inorganic fillers; Nanofiller; NiO nanoparticles; Room-temperature conductivity; Solution-casting technique; Surface morphology analysis

Composite polymer electrolyte films comprising polyethylene oxide (PEO) as the polymer host, LiClO 4 as the dopant, and NiO nanoparticle as the inorganic filler was prepared by solution casting technique. NiO inorganic filler was synthesized via sol-gel method. The effect of NiO filler on the ionic conductivity, structure, and morphology of PEO-LiClO 4-based composite polymer electrolyte was investigated by AC impedance spectroscopy, X-ray diffraction, and scanning electron microscopy, respectively. It was observed that the conductivity of the electrolyte increases with NiO concentration. The highest room temperature conductivity of the electrolyte was 7.4�10 -4 S cm -1 at 10 wt.% NiO. The observation on structure shows the highest conductivity appears in amorphous phase. This result has been supported by surface morphology analysis showing that the NiO filler are well distributed in the samples. As a conclusion, the addition of NiO nanofiller improves the conductivity of PEO-LiClO 4 composite polymer electrolyte. � Springer-Verlag 2012.