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将聚氧化乙烯聚氨酯 (PEU)和超支化聚醚硫酸盐 (SHPG- Na)共混制得了单离子型聚合物固体电解质 .运用红外光谱、升温红外、Raman光谱和复阻抗谱等手段对其进行了表征 .结果表明 ,该复合体系中的阳离子与醚氧原子发生络合作用并随盐浓度的增加而增强 ,温度对高盐浓度体系中的醚键和羰基与阳离子间的络合作用影响较大 ,而对低盐浓度体系的影响较小 ;在较低盐浓度时 ,SO3 在体系中主要以自由离子和离子对的形式存在 ,当盐浓度较高时 ,除了自由离子和离子对 ,还出现了盐的集聚体 ;PEU/SHPG- Na(离子化程度为 6 0 % )的最佳配比为 3 0 %～ 40 % (质量分数 ,即 [EO]/[Na+ ]=5～ 6 ) ,室温 (2 5°C)下最高离子电导率σ=3 .1μS/cm,中等温度 (6 0°C)下达到1 0 -5数量级 ,且电导率与温度的的关系基本符合 Arrhenius方程
Polyethylene oxide polyurethane (PEU) and hyperbranched polyether sulphate (SHPG-Na) were blended to prepare single ion polymer solid electrolytes, which were characterized by infrared spectroscopy, infrared spectroscopy, Raman spectroscopy and complex impedance spectroscopy The results showed that the complexation of the cation and ether oxygen atoms occurred with the complexation of the salt concentration and increased with the increase of salt concentration in high salt concentration system ether bond and carbonyl and cation complex between the role than Large, but little effect on low salt concentration system. At lower salt concentration, SO3 mainly exists as free ion and ion pair in the system. When the salt concentration is higher, in addition to free ion and ion pair, The optimum concentration of PEU / SHPG-Na (60% ionization degree) is 30% -40% (mass fraction [EO] / [Na +] = 5-6) , The highest ionic conductivity σ = 3.1μS / cm at room temperature (25 ° C) and the order of 10-5 at medium temperature (60 ° C), and the relationship between conductivity and temperature basically accorded with Arrhenius equation