In this study, plasticized electrospun fibers have been designed and fabricated as an electrolyte for lithium-ion batteries using electrospinning method. Polyethylene oxide (PEO) and lithium perchlorate were used as polymer matrix and lithium salt, respectively. Ethylene carbonate and propylene carbonate were applied to investigate the effects of the plasticizer concentration and various EC:PC ratios on the characteristics of the as-spun electrolytes. In addition, the influence of fiber orientation was examined on the ionic conductivity of the nanofibrous electrolytes. Results illustrated that compared with PC, EC can lead to a greater fraction of free ions, lower activation energy (Ea) and so more ionic conductivity. However, the highest room temperature ion conductivity of 0.171 mS·cm⁻¹ was obtained for the as-spun electrolyte containing EC:PC (3:1) mixture. Moreover, with the increase of PC content, cycle stability of the electrospun electrolytes faded significantly. Furthermore, the ionic conductivity reduced from 0.212 to 0.020 mS·cm⁻¹ with increasing of the fiber alignment. The results implied that the proposed nanostructured fibers can be a great candidate as free-solvent polymer electrolytes applicable in lithium-ion batteries.

在这项研究中，增塑的电纺纤维已被设计和制造为使用静电纺丝法的锂离子电池的电解质。聚环氧乙烷（PEO）和高氯酸锂分别用作聚合物基质和锂盐。使用碳酸亚乙酯和碳酸亚丙酯研究增塑剂浓度和各种EC：PC比对初纺电解质特性的影响。另外，检查了纤维取向对纳米纤维电解质的离子电导率的影响。结果表明，与PC相比，EC可以导致更大比例的游离离子，更低的活化能（Ea）和更多的离子电导率。然而，0.171毫秒的最高室温离子电导率·厘米^{- 1}对于含有EC：PC（3：1）混合物的初生电解质，获得了Rb。而且，随着PC含量的增加，电纺电解质的循环稳定性显着下降。另外，离子导电率从0.212到0.020毫秒·厘米降低^{- 1}与光纤对准的增加。结果表明，所提出的纳米结构纤维可以作为可用于锂离子电池的自由溶剂聚合物电解质的最佳选择。