Abstract
Composite fibrous membranes based on poly(acrylonitrile)(PAN)-poly(vinyl chloride)(PVC) have been prepared by electrospinning. The fibrous membranes are made up of fibers of 850- to 1,300-nm diameters. These fibers are stacked in layers to produce a fully interconnected pore structure. Polymer electrolytes were prepared by immersing the fibrous membranes in 1 M LiClO4-PC solution for 60 min. The condition of pure PAN polymer electrolytes is jelly, which has poor mechanical performance and cannot be used. But when PVC with a good mechanical stiffener was added to PAN, the condition of composite PAN–PVC polymer electrolytes becomes free-standing. In addition, the optimum electrochemical properties have been observed for the polymer electrolyte based on PAN–PVC (8:2, w/w) to show ionic conductivity of 1.05 × 10−3 S cm−1 at 25 °C, anodic stability up to 4.9 V versus Li/Li+, and a good compatibility with lithium metal resulting in low interfacial resistance. The promising results showed that fibrous PEs based on PAN–PVC (8:2, w/w) have good mechanical stability and electrochemical properties. This shows a great potential application in polymer lithium-ion batteries.
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This work was financially supported by the Youth Project of National Nature Science Foundation of China (Grant No. 51103124).
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Zhong, Z., Cao, Q., Jing, B. et al. Novel electrospun PAN–PVC composite fibrous membranes as polymer electrolytes for polymer lithium-ion batteries. Ionics 18, 853–859 (2012). https://doi.org/10.1007/s11581-012-0682-3
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DOI: https://doi.org/10.1007/s11581-012-0682-3