Enhancement of ion dynamics in organic ionic plastic crystal/PVDF composite electrolytes prepared by co-electrospinning

Wang, Xiaoen, Zhu, Haijin, Greene, George W., Li, Jiaye, Iranipour, Nahid, Garnier, Celia, Fang, Jian, Armand, Michel, Forsyth, Maria, Pringle, Jennifer M. and Howlett, Patrick C. 2016, Enhancement of ion dynamics in organic ionic plastic crystal/PVDF composite electrolytes prepared by co-electrospinning, Journal of materials chemistry A, vol. 4, no. 25, pp. 9873-9880, doi: 10.1039/c6ta02817a.

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Title Enhancement of ion dynamics in organic ionic plastic crystal/PVDF composite electrolytes prepared by co-electrospinning
Author(s) Wang, XiaoenORCID iD for Wang, Xiaoen orcid.org/0000-0001-7713-7062
Zhu, HaijinORCID iD for Zhu, Haijin orcid.org/0000-0001-6352-7633
Greene, George W.ORCID iD for Greene, George W. orcid.org/0000-0003-2250-8334
Li, Jiaye
Iranipour, Nahid
Garnier, Celia
Fang, JianORCID iD for Fang, Jian orcid.org/0000-0003-2981-9733
Armand, Michel
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Pringle, Jennifer M.ORCID iD for Pringle, Jennifer M. orcid.org/0000-0002-2729-2838
Howlett, Patrick C.ORCID iD for Howlett, Patrick C. orcid.org/0000-0002-2151-2932
Journal name Journal of materials chemistry A
Volume number 4
Issue number 25
Start page 9873
End page 9880
Total pages 8
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2016
ISSN 2050-7488
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Physical
Energy & Fuels
Materials Science, Multidisciplinary
Materials Science
Summary Electrospun fibers are widely used in composite material design and fabrication due to their high aspect ratio, high surface area and favorable mechanical properties. In this report, novel organic ionic plastic crystal (OIPC) modified poly(vinylidene difluoride) (PVDF) composite fiber membranes were prepared by electrospinning. These composite materials are of interest for application as solid electrolytes in devices including lithium and sodium batteries. The influence of the OIPC, N-ethyl-N-methylpyrrolidinium tetrafluoroborate [C2mpyr][BF4], on the morphology and phase behavior of the composite fibers was investigated by scanning electron microscopy and Fourier transform infrared spectroscopy. Compared with pure electrospun PVDF fibers, which have an electroactive β phase and a small amount of non-polar α phase, the ion-dipole interaction between OIPC and the polymer in the co-electrospun composite system can reduce the non-polar α phase PVDF, resulting in almost entirely electroactive β phase PVDF. Differential scanning calorimetry shows that the ion-dipole interaction between the OIPC and PVDF can also interrupt the crystalline structure of the OIPC. Solid state NMR analysis also reveals different molecular dynamics of the [C2mpyr][BF4] in co-electrospun fibers compared with pure OIPC. Thus, electrospun [C2mpyr][BF4]/PVDF composite fibers that combine both increased ionic conductivity and almost pure β phase PVDF are demonstrated.
Language eng
DOI 10.1039/c6ta02817a
Field of Research 091205 Functional Materials
Socio Economic Objective 970102 Expanding Knowledge in the Physical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID DP140101535
Copyright notice ©2016, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084919

Document type: Journal Article
Collections: Institute for Frontier Materials
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