Electrospinning is used to fabricate sodium ion conducting fiber membranes composed of polyethylene oxide (PEO), sodium tetrafluoroborate (NaBF₄), and succinonitrile (SN) as plasticizer.

As compared to conventionally prepared lithium electrolyte membranes with identical composition (PEO:SN:LiBF₄), those membranes exhibit conductivities up to 10⁻⁴ S cm⁻¹ at 328 K (activation energy ∼36 kJ mol⁻¹, 36:8:1 membrane), which favors such systems as a solid-state electrolyte alternative for batteries. The conduction mechanism is evaluated and the ion mobility are examined. We identified the segment mobility of the polyethylene oxide as the main driving force for the enhanced ion mobility in the membranes. The introduction of SN has only a minor influence on the conductivity and segment mobility at room temperature, but extents the anion and cation mobility to temperatures below ambient. For the 36:8:1 (PEO:SN:NaBF₄) membrane we found the highest ion mobility of all membranes under investigation. A comparison of the present sodium membranes with lithium systems of the same composition shows that the overall performance of the sodium systems is comparable. Taking plasticizer-free sodium membranes into account they perform even better than the lithium containing counterparts, and plasticizer-modified membranes show only half an order of magnitude lower conductivities than comparable lithium ones.

电纺丝用于制造钠离子导电纤维膜，该膜由聚环氧乙烷（PEO），四氟硼酸钠（NaBF ₄）和丁二腈（SN）组成，作为增塑剂。

相比于具有相同组合物常规制备的锂电解质膜（PEO：SN：的LiBF ₄），这些膜表现出电导率高达10 ^-4 小号厘米^-1 在328 K（活化能〜36千焦耳摩尔^-1，36：8： 1膜），这有利于将此类系统用作电池的固态电解质替代品。评估传导机理并检查离子迁移率。我们将聚环氧乙烷的链段迁移率确定为膜中增强的离子迁移率的主要驱动力。SN的引入对室温下的电导率和链段迁移率只有很小的影响，但是阴离子和阳离子的迁移率却低于环境温度。对于36：8：1（PEO：SN：NaBF₄）膜，我们发现所有膜的离子迁移率最高。本钠膜与相同组成的锂体系的比较表明，钠体系的整体性能是可比的。考虑到不含增塑剂的钠膜，它们的性能甚至优于含锂的钠膜，而增塑剂改性的膜的电导率仅比同类锂膜低半个数量级。