Lithium-ion battery (LIB) is essential in electric and hybrid vehicles and high-tech devices, incorporating solid polymer electrolytes (SPE) that conduct lithium ions across the system. Previous study has reported on a Polyethylene oxide (PEO):Polyvinylidene fluoride (PVDF):Lithium bis (trifluoromethanesulfonyl) imide (LiTFSI)-based electrolyte. The objective of that research is to enhance the efficiency of lithium-ion batteries that are all-solid-state by maximizing the formation of electrolytes composed of polyethylene oxide (PEO) and polyvinylidene fluoride (PVDF). The research found that the ionic conductivity significantly improves when PEO/PVDF has a ratio of 1:5 to lithium bis (trifluoromethane sulphonyl) imide (LiTFSI). At 30 0C, the conductivity reaches 2.98  X 10-5 S/cm, and at 60 0C, it increases to 5.56 X 0-4 S/cm. Introducing an interpenetrating polymer network (IPN) onto SPE by compositing it with conducting polymer (CP) enhances their ionic conductivity by providing more pathways for ion transport in SPE. In this study, IPN films of polyaniline (PANI):PEO:PVDF:LiTFSI were synthesized with varying PANI concentrations (1 wt.%, 3 wt.%, and 5 wt.%) and composited with 7 wt.% of PEO and 3 wt.% of PVDF. The phase and structure of these polymer composite films were characterized using X-ray diffraction (XRD), which showed that increasing the concentration of PANI will increase the SPE's ionic conductivity by reducing its crystallinity. Electrochemical Impedance Spectroscopy (EIS) showed that the film with 5 wt.% PANI exhibited the highest ionic conductivity, measuring 1.8 x 10–5 S/cm. Morphological analysis conducted using a Field Emission Scanning Electron Microscope (FESEM) revealed that the PANI:PEO:PVDF:LiTFSI SPE with 1 wt.% and 3 wt.% of PANI displays a homogeneous surface with an IPN structure, potentially enhancing Li-ion migration rates. These findings indicate a promising direction for the future fabrication of solid polymer electrolytes.