聚合物电解质离子电导率提升技术研究进展

Advances in Techniques to Improve the Ionic Conductivity of Polymer Electrolytes

关键词:  聚合物  电解质  离子电导率

Key Words:polymer  electrolyte  ionic conductivity

摘要:聚合物电解质作为一种具有良好机械强度、可加工性和安全性的电解质材料，广泛应用于固态电池、超级电容器、传感器等领域。然而，聚合物电解质的离子电导率普遍较低，限制了其在高能量密度储能设备中的应用。本文综述了影响聚合物电解质离子电导率的主要因素（界面效应、离子化程度、聚合物分子质量），以及多种提高聚合物电解质离子电导率的技术，深入对比分析了材料设计、界面调控、功能性填料添加等方法对聚合物电解质离子电导率的影响，并对聚合物电解质离子电导率的提升策略进行了探讨。

Abstract:Due to the excellent mechanical strength， processability， and safety，polymer electrolytes have been widely used in solid-state batteries， supercapacitors， sensors， and other fields. However， generally low ionic conductivity limits their application in high-energy-density energy storage devices. This paper summarized the main factors affecting ionic conductivity of polymer electrolytes—including interfacial effects， degree of ionization， polymer molecular weight，as well as various strategies to enhance the ionic conductivity of polymer electrolytes. It provided an in-depth comparative analysis of the impacts of material design， interfacial engineering， and the incorporation of functional fillers on the ionic conductivity of polymer electrolytes， furtuer discussed potential strategies for further improvements.