Ionic Conduction in Polymer-Based Solid Electrolytes,Advanced Science

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Ionic Conduction in Polymer-Based Solid Electrolytes
Advanced Science ( IF 14.3 ) Pub Date : 2023-01-25 , DOI: 10.1002/advs.202201718
Zhuo Li ₁ , Jialong Fu ₁ , Xiaoyan Zhou ₁ , Siwei Gui ₂ , Lu Wei ₁ , Hui Yang ₂ , Hong Li ₃ , Xin Guo ₁

Affiliation

Good safety, high interfacial compatibility, low cost, and facile processability make polymer-based solid electrolytes promising materials for next-generation batteries. Key issues related to polymer-based solid electrolytes, such as synthesis methods, ionic conductivity, and battery architecture, are investigated in past decades. However, mechanistic understanding of the ionic conduction is still lacking, which impedes the design and optimization of polymer-based solid electrolytes. In this review, the ionic conduction mechanisms and optimization strategies of polymer-based solid electrolytes, including solvent-free polymer electrolytes, composite polymer electrolytes, and quasi-solid/gel polymer electrolytes, are summarized and evaluated. Challenges and strategies for enhancing the ionic conductivity are elaborated, while the ion-pair dissociation, ion mobility, polymer relaxation, and interactions at polymer/filler interfaces are highlighted. This comprehensive review is especially pertinent for the targeted enhancement of the Li-ion conductivity of polymer-based solid electrolytes.

中文翻译：

聚合物基固体电解质中的离子传导

良好的安全性、高界面相容性、低成本和易加工性使聚合物基固体电解质成为下一代电池的有前途的材料。过去几十年研究了与聚合物基固体电解质相关的关键问题，例如合成方法、离子电导率和电池结构。然而，仍然缺乏对离子传导的机理理解，这阻碍了聚合物基固体电解质的设计和优化。在这篇综述中，总结和评估了聚合物基固体电解质的离子传导机制和优化策略，包括无溶剂聚合物电解质、复合聚合物电解质和准固体/凝胶聚合物电解质。阐述了提高离子电导率的挑战和策略，同时突出显示了离子对解离、离子迁移率、聚合物弛豫和聚合物/填料界面处的相互作用。这篇综合综述特别适用于有针对性地提高聚合物基固体电解质的锂离子电导率。

更新日期：2023-01-25

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