Electrical and mechanical characterisation of poly(ethylene)oxide-polysulfone blend for composite structural lithium batteries

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dc.contributor.authorGucci, Francesco
dc.contributor.authorGrasso, Marzio
dc.contributor.authorRusso, Stefano
dc.contributor.authorLeighton, Glenn J. T.
dc.contributor.authorShaw, Christopher
dc.contributor.authorBrighton, James
dc.date.accessioned2023-06-30T09:48:28Z
dc.date.available2023-06-30T09:48:28Z
dc.date.issued2023-06-05
dc.description.abstractIn this work, a blend of PEO, polysulfone (PSF), and lithium bis(trifluoromethanesulfonyl)imide (LiTFSi) was prepared at different PEO–PSf weight ratios (70-30, 80-20, and 90-10) and ethylene oxide to lithium (EO/Li) ratios (16/1, 20/1, 30/1, and 50/1). The samples were characterised using FT-IR, DSC, and XRD. Young’s modulus and tensile strength were evaluated at room temperature with micro-tensile testing. The ionic conductivity was measured between 5 °C and 45 °C through electrochemical impedance spectroscopy (EIS). The samples with a ratio of PEO and PSf equal to 70-30 and EO/Li ratio equal to 16/1 have the highest conductivity (1.91 × 10−4 S/cm) at 25 °C, while the PEO–PSf 80-20 EO/Li = 50/1 have the highest averaged Young’s modulus of about 1.5 GPa at 25 °C. The configuration with a good balance between electrical and mechanical properties is the PEO–PSf 70-30 EO/Li = 30/1, which has a conductivity of 1.17 × 10−4 S/cm and a Young’s modulus of 800 MPa, both measured at 25 °C. It was also found that increasing the EO/Li ratio to 16/1 dramatically affects the mechanical properties of the samples with them showing extreme embrittlement.en_UK
dc.identifier.citationGucci F, Grasso M, Russo S, (2023) Electrical and mechanical characterisation of poly(ethylene)oxide-polysulfone blend for composite structural lithium batteries. Polymers, Volume 15, Issue 11, June 2023, Article number 2581en_UK
dc.identifier.issn2073-4360
dc.identifier.urihttps://doi.org/10.3390/polym15112581
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19913
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectpolymer blenden_UK
dc.subjectmechanical propertiesen_UK
dc.subjectmultifunctional materialen_UK
dc.subjectcomposite structural batteryen_UK
dc.subjectpolyethylene oxideen_UK
dc.titleElectrical and mechanical characterisation of poly(ethylene)oxide-polysulfone blend for composite structural lithium batteriesen_UK
dc.typeArticleen_UK

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