A (PVA–PVP)-based polymer electrolyte doped with different concentrations of nickel chloride hexahydrate (NiCl₂·6H₂O) and cadmium chloride hexahydrate (CdCl₂·6H₂O) as a mixed filler with ratio (50:50) was synthesized by solution casting technique. Thermal behavior, mechanical and dielectric properties of the prepared composite samples were carefully studied. Relaxation process of the induced charge carriers was also discussed, where three relaxation processes, namely αβ-, β- and βγ-relaxations were found and were associated with the amorphous nature of (PVA–PVP)/(Ni–Cd) composite. The growth in amorphous regions facilitates the rotational motion of (O–H, N–O and C=O) dipolar groups and movement of single polarons, enhancing the interfacial and dipolar polarization and consequently the dielectric properties. The considerable decrease in activation energy (E_relax), relaxation time (τ), dielectric modulus (M′′) and loss tangent (tan δ) values in addition to free volumes arose inside the polymeric matrix confirmed the strong interaction between composite constituents. The dielectric nature of (PVA–PVP) blend and the conductive nature of (Ni–Cd) fillers helped in composing microcapacitors inside the present polymeric matrix. Additionally, the tensile strength has increased from 5.55 MPa to 21.4 MPa, whereas Young’s modulus has improved from 340.52 to 1706.82 MPa. This constructive enhancement in dielectric and mechanical properties suggests exploiting the (PVA–PVP)/(Ni–Cd) composite in manufacturing (Ni–Cd) batteries and energy storage devices.

一种（PVA–PVP）基聚合物电解质，掺杂了不同浓度的六水合氯化镍（NiCl ₂ ·6H ₂ O）和六水合氯化镉（CdCl ₂ ·6H ₂通过溶液浇铸技术合成了比例为（50∶50）的O）作为混合填料。仔细研究了制备的复合材料样品的热行为，机械性能和介电性能。还讨论了感应电荷载流子的弛豫过程，其中发现了三个弛豫过程，即αβ-，β-和βγ-弛豫，它们与（PVA-PVP）/（Ni-Cd）复合材料的非晶态有关。非晶区的生长促进了（OH，N–O和C = O）偶极基团的旋转运动以及单极化子的运动，从而增强了界面极化和偶极极化，从而增强了介电性能。活化能（E_弛豫），弛豫时间（τ），介电模量（M''）和损耗角正切（黄褐色δ除了自由体积）值产生内的聚合物基体复合材料证实成分之间的强相互作用。（PVA-PVP）混合物的介电性质和（Ni-Cd）填料的导电性质有助于在本聚合物基体内部组成微电容器。另外，抗拉强度从5.55 MPa增加到21.4 MPa，而杨氏模量从340.52改善到1706.82 MPa。这种介电和机械性能的建设性提高表明在制造（Ni-Cd）电池和储能设备中使用（PVA-PVP）/（Ni-Cd）复合材料。