Print: | ISSN 0256-1115 |
Online: | ISSN 1975-7220 |
Korean Journal of Chemical Engineering,
Vol.40, No.8, 1901-1911, 2023 Electrospun PVDF-HFP/PAN bicomponent nanofibers as separators in lithium-ion batteries with high thermal stability and electrolyte wettability
Battery reliability is emerging as a new challenge due to the thermal stability and electrolyte wettability of polyolefin separators used in lithium-ion batteries. In this study, a method to improve the thermal stability and electrolyte wettability of a polyolefin separator is proposed. Bicomponent nanofibers were successfully fabricated by electro-spinning poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) with high ionic conductivity and polyacrylonitrile (PAN) with excellent thermal stability. The nanofiber-based separator of PVDF-HFP/PAN exhibited high porosity (60–76%), electrolyte uptake (≅2,000%), and thermal stability (5%
Keywords:
Electrospinning; Bicomponent Nanofiber; PVDF-HFP/PAN; Thermal Stability; Electrolyte Wettability; Separator
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