Electrochemical performances and thermal properties of electrospun Poly(phthalazinone ether sulfone ketone) membrane for lithium-ion battery |
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| Authors: | Wen QiChun Lu Ping Chen Ling HanQi Yu Riqin Xu |
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| Affiliation: | a State Key Laboratory of Fine Chemicals & School of Chemical Engineering, Dalian University of Technology, Dalian Liaoning 116024, Chinab Liaoning Key Laboratory of Advanced Polymer Matrix Composites Manufacturing Technology & College of Aerospace Engineering, Shenyang Aerospace University, Shenyang Liaoning 110136, Chinac Shantou Jinguang High Tech Co.,Ltd, Shantou Guangdong, 515064, China |
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| Abstract: | A novel Poly(phthalazinone ether sulfone ketone) (PPESK) membrane for lithium-ion battery was prepared using electrospinning technique. The morphology, electrochemical performances and thermal properties of electrospun PPESK fabrics were investigated. Results indicate that electrospun PPESK fabrics have high porosity of 92% and high electrolyte uptake of 1210%, which lead to their high ionic conductivity of 3.79 × 10− 3 S·cm− 1 at 25 °C. The cell assembled with PPESK fabrics displays better electrochemical stability and higher cycling discharge capacity than that assembled with PVDF fabrics. Moreover, electrospun PPESK fabrics exhibit excellent thermal dimensional stability. When PPESK fabrics are treated in oven at 220 °C for 1 h, the shape of membrane is unchanged. Electrospun PPESK fabrics have possible applications for high performance lithium-ion battery. |
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| Keywords: | Electrospun Polymers Membrane Electrochemical performances Thermal properties Lithium-ion battery |
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