The Physicochemical Properties of PVDF/SiO2 Composite Nanofibers for Potential Application of Lithium-Ion Battery Separators

Oki Ade Putra; Berlian Muhammad Ilham; Hendri Widiyandari

doi:10.4028/www.scientific.net/MSF.1044.81

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HomeMaterials Science ForumMaterials Science Forum Vol. 1044The Physicochemical Properties of PVDF/SiO2...

The Physicochemical Properties of PVDF/SiO₂ Composite Nanofibers for Potential Application of Lithium-Ion Battery Separators

Abstract:

Lithium-ion batteries have the main component include a positive electrode, negative electrode, liquid electrolyte, and membrane separator. The separator was used to secure the battery by preventing it from short circuits. In this paper, the separator PVDF/SiO₂ (Polyvinylidene fluoride/Silica) nanofiber membrane was synthesized by double jet sprayers electrospinning method on rotating cylinder collector. The SiO₂ colloid nanoparticle concentration was varied at 1000, 2500, and 5000 ppm. The effect of the SiO₂ nanoparticle addition to the PVDF nanofiber membrane to improve membrane characteristics, including porosity, high temperature stability mechanical, mechanical strength, and battery capacity stability, were systematically investigated. The PVDF/SiO₂ results have a fibrous structure with SiO₂ adhering to the fibers' surface. The membrane separator's average thickness is 10.2 micrometers. A large amount of SiO₂ addition (SiO₂ 5000 ppm) on the PVDF nanofibers membrane increased porosity, mechanical properties, and stability at a temperature of 150 °C.

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Materials Science Forum (Volume 1044)

Pages:

81-87

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1044.81

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Online since:

August 2021

Authors:

Oki Ade Putra, Berlian Muhammad Ilham, Hendri Widiyandari*

Keywords:

Electrospinning, Lithium-Ion Battery, PVDF/SiO₂ Nanofibers, Rotating Cylinder Collector, Separator

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