As lithium-ion batteries have been the state-of-the-art electrochemical energy storage technology, the overwhelming demand for energy storage on a larger scale has triggered the development of next-generation battery technologies possessing high energy density, longer cycle lives, and enhanced safety. However, commercial liquid electrolytes have been plagued by safety issues due to their flammability and instability in contact with electrodes. Efforts have focused on developing such electrolytes by covalently immobilizing anionic groups onto a polymer backbone, which only allows Li⁺ cations to be mobile through the polymer matrix. Such ion-selective polymers provide many advantages over binary ionic conductors in battery operation, such as minimization of cell polarization and dendrite growth. In this review, the design, synthesis, fabrication, and class are reviewed to give insight into the physicochemical properties of single-ion conducting polymer electrolytes. The standard characterization method and remarkable electrochemical properties are further highlighted, and perspectives on current challenges and future directions are also discussed.

中文翻译：

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单离子导电聚合物电解质作为下一代电池应用的关键拼图

由于锂离子电池一直是最先进的电化学储能技术，对更大规模储能的巨大需求引发了具有高能量密度、更长循环寿命和更长寿命的下一代电池技术的发展。增强的安全性。然而，商业液体电解质因其易燃性和与电极接触的不稳定性而受到安全问题的困扰。努力集中于通过将阴离子基团共价固定在聚合物骨架上来开发此类电解质，这仅允许 Li ⁺阳离子可通过聚合物基质移动。这种离子选择性聚合物在电池操作中提供了许多优于二元离子导体的优点，例如最小化电池极化和枝晶生长。在这篇综述中，回顾了设计、合成、制造和分类，以深入了解单离子导电聚合物电解质的物理化学性质。进一步强调了标准表征方法和卓越的电化学性能，并讨论了当前挑战和未来方向的前景。