Article ID Journal Published Year Pages File Type
1294848 Solid State Ionics 2011 5 Pages PDF
Abstract

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.

Related Topics
Physical Sciences and Engineering Chemistry Electrochemistry
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