This review explores strategies to improve ion conduction and interfacial compatibility in solid polymer electrolytes, indicating their potential for better performance in secondary batteries.
Solid polymer electrolytes (SPEs) have garnered significant research interest as promising candidates for solid-state secondary batteries, offering enhanced safety, mechanical flexibility, and intrinsic dendrite suppression capabilities. However, persistent limitations, including low Li-ion transference numbers, inadequate interface conductivity, narrow electrochemical stability windows, and insufficient long-term stability, still impede their practical implementation. This review critically examines innovative strategies in polymer chemistry and structural design to address these challenges, with a particular emphasis on enhancing the interfacial compatibility of SPE electrodes. By elucidating fundamental structure-property relationships, we highlight pathways for optimizing compositional and microstructural modifications in high-performance SPE systems.
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Wang et al. (2025) studied this question.
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