In this work, ionic liquid, poly(vinyl alcohol) (PVA)-based sodium ion conductors were prepared by solution casting technique. The additives-free ion conductors illustrated poor ionic conductivity which is not applicable in any electrochemical device. Therefore, ionic liquid was added to improve the ionic conductivity of polymer electrolytes. Ionic liquid, 1-butyl-3-methylimidazolium bromide (BmImBr)-added solid polymer electrolytes comprising poly(vinyl alcohol) (PVA) and sodium acetate trihydrate (CH₃COONa·3H₂O) was investigated. The ionic conductivity of BmImBr-added polymer electrolyte (PE) showed an increment about five orders of magnitude from (1.07 ± 0.03) × 10⁻⁸ S cm⁻¹ to (1.95 ± 0.01) × 10⁻³ S cm⁻¹ with doping of 20 wt% of BmImBr under ambient temperature. The BmImBr-added PEs obey the Vogel–Tamman–Fulcher (VTF) theory. The plasticizing effect of BmImBr reduces the glass transition temperature (T_g) of the PEs. Complexation between PVA, CH₃COONa·3H₂O, and BmImBr was proven in Fourier-transform Infrared (FTIR) spectroscopy studies. Quantitative analysis of the interaction between PVA, CH₃COONa·3H₂O, and BmImBr was also scrutinized in FTIR study. The electrochemical potential window of the electrolyte was wider upon the addition of ionic liquid. Electric double-layer capacitors (EDLCs) were assembled. The assembled EDLC illustrated a specific capacitance of 0.684F g⁻¹ with excellent electrochemical stability.

在这项工作中，通过溶液浇铸技术制备了离子液体，聚乙烯醇（PVA）基钠离子导体。不含添加剂的离子导体显示出差的离子电导率，这不适用于任何电化学装置。因此，添加离子液体以改善聚合物电解质的离子电导率。研究了离子液体，添加了1丁基-3-甲基咪唑鎓溴化物（BmImBr）的固体聚合物电解质，该电解质包括聚乙烯醇（PVA）和三水合乙酸钠（CH ₃ COONa·3H ₂ O）。添加了BmImBr的聚合物电解质（PE）的离子电导率显示从（1.07±0.03）×10 ^-8 S cm ^-1到（1.95±0.01）×10 ^-3 S cm大约五个数量级的增量^-1，在环境温度下掺杂20 wt％的BmImBr。添加BmImBr的PE遵循Vogel–Tamman–Fulcher（VTF）理论。BmImBr的增塑作用降低了PE的玻璃化转变温度（T _g）。在傅立叶变换红外（FTIR）光谱研究中证明了PVA，CH ₃ COONa·3H ₂ O和BmImBr之间的络合。FTIR研究还对PVA，CH ₃ COONa·3H ₂ O和BmImBr之间的相互作用进行了定量分析。添加离子液体后，电解质的电化学电势窗口变宽。组装了双电层电容器（EDLC）。组装的EDLC的比电容为0.684F g^-1具有优异的电化学稳定性。