کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1294848 | 973639 | 2011 | 5 صفحه PDF | دانلود رایگان |
Investigation on a new electrospun gel polymer electrolyte consisting of thermoplastic polyurethane (TPU) and poly(vinylidene fluoride) (PVdF) has been made. Its characteristics were investigated by scanning electron microscopy, FT-IR, Differential Scanning Calorimeter (DSC) analysis. This kind of gel polymer electrolyte had a high ionic conductivity about 3.2 × 10− 3 S cm− 1 at room temperature, and exhibited a high electrochemical stability up to 5.0 V versus Li+/Li, good mechanical strength and stability to allow safe operation in rechargeable lithium-ion polymer batteries. A Li/GPE/LiFePO4 cell delivered a high discharge capacity when it was evaluated at 0.1 °C—rate at 25 °C (167.8 mAh g− 1). And a very stable cycle performance also existed under this low current density.
► We are the first people to choose TPU/PVdF as matrixes.
► We prepared the films with electrospun technology.
► There is also no study on the TPU/PVdF blend membranes using electrospinning method so far.
► The electrochemical properties of GPEs are significantly improved.
Journal: Solid State Ionics - Volume 203, Issue 1, 16 November 2011, Pages 42–46