<p>This work investigates the fabrication of barium bismuth titanate (BaBi₄Ti₄O₁₅) ceramic and its incorporation into polyvinylidene fluoride (PVDF) to produce composite films via solution casting. Scanning electron microscope images reveal a distinct microstructure, with grains uniformly dispersed and grain boundaries clearly visible, suggesting that BBTO ceramic particles are evenly incorporated into the PVDF polymer matrix. At lower frequencies, the nearly 50-fold increase in dielectric constant with temperature is attributed to the growing influence of interfacial polarisation. When BaBi₄Ti₄O₁₅ (BBTO) is added to the PVDF matrix, the AC conductivity decreases dramatically, providing evidence for a prospective energy storage opportunity. Moreover, the work established the stability and compatibility of the composite by confirming that BBTO does not impact the β phase of PVDF. An impedance spectroscopic study revealed that upon dilution, both BBTO and PVDF samples exhibited a single partially formed semicircle, suggesting a combination of the electrode effect on conduction and grain boundary resistance. Therefore, the dielectric response, AC conductivity, and impedance behaviour of the PVDF-BBTO composites are mainly determined by interfacial polarisation in the double layer and by the thermally activated motion of the PVDF polymer chains. This work initiated a deeper understanding of the ceramic PVDF structure and its potential as a dielectric capacitor.</p>