Evaluation of electrospun PVA/SiO2 nanofiber separator membranes for lithium-ion batteries

Meltem Yanilmaz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Electrospun PVA/SiO2 separator membranes were presented and their electrochemical performance was evaluated for use in Li-ion batteries. Polyvinyl alcohol (PVA) was used to prepare nanofiber based membranes due to advantages such as low cost, water solubility, and biodegradability. Sol gel technique was employed to introduce SiO2 in PVA nanofibers. It was found that PVA separator membranes had superior electrochemical properties with highly porous structure. Introducing SiO2 further improved porosity, liquid electrolyte uptake, as well as ionic conductivity, and reduced interfacial resistance. Furthermore, when PVA/SiO2 separator membranes were assembled into lithium/lithium iron phosphate cells, higher cycling and C-rate performance was observed compared to those using commercial microporous polyolefin membrane.

Original languageEnglish
Pages (from-to)447-452
Number of pages6
JournalJournal of the Textile Institute
Volume111
Issue number3
DOIs
Publication statusPublished - 3 Mar 2020

Bibliographical note

Publisher Copyright:
© 2019, © 2019 The Textile Institute.

Funding

This research was supported by Research Fund of the Istanbul Technical University. Project Number: MGA-2017-40754.

FundersFunder number
Istanbul Teknik ÜniversitesiMGA-2017-40754

    Keywords

    • battery separator
    • electrospinning
    • Li-ion battery
    • nanofiber
    • Polyvinyl alcohol

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