Abstract In the present work, we report a polymer-nanocomposite electrolyte (PNCE) system by dispersing CeO2 nano-powders as fillers in Poly(ethylene)oxide-LiClO4 matrix. The ceria powders known for their redox and catalytic activity have strongly influenced the structural properties of the PNCEs. XRD and thermal analysis results suggest structural modification in PNCEs that leads to improved ionic conductivity. The maximum conductivity of ∼3.0 × 10−5 S cm−1 is observed for 1–2 wt% and 10 wt% nano-CeO2 dispersed PNCEs. The d.c. conductivity and hopping frequency are thermally activated. The activation energy of d.c. conductivity (Ea) and ion hopping (Em) are well correlated, suggesting that PNCEs with smaller interaction energy between Li+ ions and PEO offer better ionic conductivity.

中文翻译：

---

纳米二氧化铈分散体对提高聚合物纳米复合电解质中锂离子电导率的协同作用

摘要 在目前的工作中，我们报告了一种聚合物-纳米复合电解质 (PNCE) 系统，该系统通过将 CeO2 纳米粉末作为填料分散在聚（乙烯）氧化物-LiClO4 基质中。以其氧化还原和催化活性而闻名的氧化铈粉末强烈影响了 PNCE 的结构特性。XRD 和热分析结果表明 PNCE 中的结构改性导致离子电导率提高。对于 1-2 wt% 和 10 wt% 纳米 CeO2 分散的 PNCE，观察到的最大电导率为 ~3.0 × 10-5 S cm-1。直流电导率和跳频是热激活的。直流电导率 (Ea) 的活化能 (Ea) 和离子跳跃 (Em) 密切相关，表明 Li+ 离子和 PEO 之间相互作用能较小的 PNCEs 提供更好的离子电导率。