摘要
Abstract
In this study,Sb2O3@PMIA/TPP@PVDF-CTFE composite separators for lithium-ion batteries with a side-by-side structure were prepared by the side-by-side electrospinning technique,and the mechanical properties,thermal stability,flame retardancy,and electrolyte wettability of the composite separators were analyzed.The results showed that the composite separator has high mechanical properties(tensile strength of 11.7 MPa),excellent thermal stability(only slight deformation after heat treatment at 220℃for 0.5 h),good flame retardant properties and excellent electrolyte wettability,and also has a high porosity and electrolyte absorption rate(277%and 78%,respectively),and an ionic conductivity as high as 2.67 mS/cm,which is shown by the experimental results.The prepared side-by-side composite separator effectively improves the safety and ion transport capacity of the battery.关键词
静电纺丝/并列结构/安全性能/离子传输性能/Sb2O3/PMIA/PVDF-CTFE/TPPKey words
electrospinning/side-by-side structure/safety performance/ion transport properties/Sb2O3/PMIA/PVDF-CTFE/TPP分类
化学化工
