Ternary solid polymer electrolytes (TSPEs) with ionic liquids (ILs) including alkyl-based ammonium cations and low coordinating anions suffer from the lack of Li⁺ ion coordination by the ILs compared to the immobile polymer backbone, in terms of Li⁺ ion transport. Thus, solvating ionic liquids (SILs) with an oligo(ethylene oxide) side chain attached onto the cation were prepared to improve the interaction between Li⁺ and the IL and accelerate Li⁺ transport in TSPEs. A variety of methods, such as pulsed field gradient nuclear magnetic resonance spectroscopy, Li metal plating/stripping and measurements of Sand's times were used to show that Li⁺ ion transference numbers increase with the oligo(ethylene oxide) side chain length in SIL-based TSPEs, which results in faster Li⁺ ion transport and translates into much slower lithium depletion at a given current, thereby delaying the onset of fast dendrite growth of lithium metal.

与固定聚合物骨架相比，具有离子液体 (IL) 的三元固体聚合物电解质 (TSPE) 包括烷基铵阳离子和低配位阴离子，在 Li ⁺离子传输方面，ILs缺乏 Li ⁺离子配位。因此，制备了具有连接到阳离子上的低聚（环氧乙烷）侧链的溶剂化离子液体（SIL）以改善 Li ⁺和 IL之间的相互作用并加速TSPE 中的Li ⁺传输。各种方法，如脉冲场梯度核磁共振波谱、Li 金属镀层/剥离和 Sand 时间的测量被用来证明 Li ⁺离子转移数随着基于 SIL 的 TSPE 中低聚（环氧乙烷）侧链长度的增加而增加，这导致更快的 Li ⁺离子传输并在给定电流下转化为更慢的锂消耗，从而延迟锂快速枝晶生长的开始金属。