Ionic liquid has relatively high conductivity at room temperature and good electrochemical stability. Ionic liquid polymer electrolytes have some advantages of both ionic liquid and polymer. In this work, 1-alkyl-3-(2',3'-dihydroxypropyl)imidazolium chloride (IL-Cl) was incorporated into waterborne polyurethane chain to composite all-solid-state polymer electrolyte matrices. The structure, thermal stability, mechanical property and ionic conductivity of the matrices were investigated by Fourier transform infrared spectroscopy (FTIR), thermogravimetric Analysis (TGA), tensile measurement and electrochemical impedance spectroscopy (EIS). The results demonstrated that when the content of IL-Cl was 14 wt%, the mechanical property of film was optimized, with a maximum tensile strength of 36 MPa and elongation at break of 1030%. In addition, as for the film with IL-Cl content of 16 wt%, its oxygen index value increased to 25.2% and ionic conductivity reached a maximum of 1.2 × 10-5 S·cm-1 at room temperature, showing high flame retardancy and ionic conductivity.

中文翻译：

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一种将离子液体掺入水性聚氨酯锂离子电池的新型聚合物电解质基体。

离子液体在室温下具有相对较高的电导率和良好的电化学稳定性。离子液体聚合物电解质具有离子液体和聚合物的一些优点。在这项工作中，将1-烷基-3-（2'，3'-二羟丙基）咪唑鎓氯化物（IL-Cl）掺入水性聚氨酯链中，以合成全固态聚合物电解质基质。通过傅里叶变换红外光谱（FTIR），热重分析（TGA），拉伸测量和电化学阻抗谱（EIS）研究了基体的结构，热稳定性，力学性能和离子电导率。结果表明，当IL-Cl的含量为14wt％时，膜的机械性能被优化，最大拉伸强度为36MPa，断裂伸长率为1030％。此外，