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Fabrication of co-PVDF/modacrylic/SiO2 nanofibrous membrane: Composite separator for safe and high performance lithium-ion batteries |
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| Authors: | Adel Al Rai Elena Stojanovska Yasin Akgul Mohammad Mansoob Khan Ali Kilic Safak Yilmaz |
| Affiliation: | 1. TEMAG Labs, Istanbul Technical University, Istanbul, Turkey;2. Department of Engineering, Karabuk University, Karabuk, Turkey;3. Chemical Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam;4. Department of Mechanical Engineering, Istanbul Technical University, Istanbul, Turkey |
| Abstract: | Highly porous free-standing co-poly(vinylidene fluoride)/modacrylic/SiO2 nanofibrous membrane was developed using electrically-assisted solution blow spinning method. The performance and the potential of the membrane as a lithium-ion battery separator were investigated. The addition of modacrylic enhanced the solution spinnability that resulted in defect-free membranes. Moreover, the presence of modacrylic enhanced the dimensional and thermal stabilities, while the addition of hydrophilic SiO2 nanoparticle enhanced both mechanical property and ionic conductivity. Combustion test results illustrated that the presence of modacrylic provide flame retarding property over a set of different polymeric-based membranes. Electrochemical performance results showed that the developed membrane can increase the battery capacity compared with the commercial separator. |
| Keywords: | electrically-assisted solution blow spinning lithium-ion batteries modacrylic nanofiber. |