In this study, the effect of structure on the ionic conductivity and dielectric response of polyvinyl alcohol solid polymer electrolyte films doped with ammonium nitrate (NH₄NO₃) was investigated. Structural studies show that the solid polymer electrolytes in a suitable salt ratio enhance the amorphous fraction of the host matrix and facilitate the fast movement of H-ions, resulting in the enhancement of electrical conductivity. The highest ionic conductivity at room temperature (5.17 × 10⁻⁵ S/cm) was achieved by incorporating 30 wt.% of NH₄NO₃, which shows the maximum ion dissociation in the host matrix due to ion–polymer interaction. The reduction in the ionic conductivity at higher salt concentrations (above 30 wt.%) is the consequence of a decrease in the carrier concentration and its movement, respectively, due to the formation of ion pairs and a reduction in the amorphous fraction of the system. A broad asymmetric peak of the imaginary part of the electrical modulus suggests a temperature-dependent non-Debye relaxation process for the present system.

在这项研究中，研究了结构对掺杂硝酸铵（NH ₄ NO ₃）的聚乙烯醇固体聚合物电解质膜的离子电导率和介电响应的影响。结构研究表明，以适当的盐比例存在的固体聚合物电解质可增强基质的非晶态部分，并促进H离子的快速移动，从而提高电导率。 通过掺入30 wt。％的NH ₄ NO _3，可实现室温下最高的离子电导率（5.17×10 ^-5 S / cm），该图显示了由于离子与聚合物的相互作用，基质中的最大离子解离度。在较高的盐浓度（高于30 wt。％）下，离子电导率的降低是由于形成离子对并降低了系统的非晶态部分而导致的载流子浓度及其运动降低的结果。 。电模量的虚部的宽不对称峰表明本系统的温度依赖性非德拜弛豫过程。