Skip to main content

Effect of fiber orientation in gelled poly(vinylidene fluoride) electrospun membranes for Li-ion battery applications

Journal Article


Abstract


  • Battery separators based on electrospun membranes of poly(vinylidene fluoride) (PVDF) have been prepared in order to study the effect of fiber alignment on the performance and characteristics of the membrane. The prepared membranes show an average fiber diameter of ~272 nm and a degree of porosity of ~87 %. The gel polymer electrolytes are prepared by soaking the membranes in the electrolyte solution. The alignment of the fibers improves the mechanical properties for the electrospun membranes. Further, the microstructure of the membrane also plays an important role in the ionic conductivity, being higher for the random electrospun membrane due to the lower tortuosity value. Independently of the microstructure, both membranes show good electrochemical stability up to 5.0 V versus Li/Li+. These results show that electrospun membranes based on PVDF are appropriate for battery separators in lithium-ion battery applications, the random membranes showing a better overall performance. © 2013 Springer Science+Business Media New York.

UOW Authors


  •   Costa, Carlos M. (external author)
  •   Nunes-Pereira, J (external author)
  •   Gomes da Silva Sencadas, Vitor
  •   Silva, M M. (external author)
  •   Lanceros-Méndez, Senentxu (external author)

Publication Date


  • 2013

Citation


  • Costa, C. M., Nunes-Pereira, J., Sencadas, V., Silva, M. M. & Lanceros-Méndez, S. (2013). Effect of fiber orientation in gelled poly(vinylidene fluoride) electrospun membranes for Li-ion battery applications. Journal of Materials Science, 48 (19), 6833-6840.

Scopus Eid


  • 2-s2.0-84880823378

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3687

Number Of Pages


  • 7

Start Page


  • 6833

End Page


  • 6840

Volume


  • 48

Issue


  • 19

Abstract


  • Battery separators based on electrospun membranes of poly(vinylidene fluoride) (PVDF) have been prepared in order to study the effect of fiber alignment on the performance and characteristics of the membrane. The prepared membranes show an average fiber diameter of ~272 nm and a degree of porosity of ~87 %. The gel polymer electrolytes are prepared by soaking the membranes in the electrolyte solution. The alignment of the fibers improves the mechanical properties for the electrospun membranes. Further, the microstructure of the membrane also plays an important role in the ionic conductivity, being higher for the random electrospun membrane due to the lower tortuosity value. Independently of the microstructure, both membranes show good electrochemical stability up to 5.0 V versus Li/Li+. These results show that electrospun membranes based on PVDF are appropriate for battery separators in lithium-ion battery applications, the random membranes showing a better overall performance. © 2013 Springer Science+Business Media New York.

UOW Authors


  •   Costa, Carlos M. (external author)
  •   Nunes-Pereira, J (external author)
  •   Gomes da Silva Sencadas, Vitor
  •   Silva, M M. (external author)
  •   Lanceros-Méndez, Senentxu (external author)

Publication Date


  • 2013

Citation


  • Costa, C. M., Nunes-Pereira, J., Sencadas, V., Silva, M. M. & Lanceros-Méndez, S. (2013). Effect of fiber orientation in gelled poly(vinylidene fluoride) electrospun membranes for Li-ion battery applications. Journal of Materials Science, 48 (19), 6833-6840.

Scopus Eid


  • 2-s2.0-84880823378

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3687

Number Of Pages


  • 7

Start Page


  • 6833

End Page


  • 6840

Volume


  • 48

Issue


  • 19