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Photo-Crosslinked Polyurethane—Containing Gel Polymer Electrolytes via Free-Radical Polymerization Method

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dc.contributor.authorUYUMAZ, FATMANUR
dc.contributor.authorsUyumaz F., Yerkinbekova Y., Kalybekkyzy S., Kahraman M. V.
dc.date.accessioned2024-09-20T08:26:42Z
dc.date.available2024-09-20T08:26:42Z
dc.date.issued2024-09-01
dc.description.abstractUsing a novel technique, crosslinked gel polymer electrolytes (GPEs) designed for lithium-ion battery applications have been created. To form the photo crosslink via free-radical polymerization, a mixture of polyurethane acrylate (PUA), polyurethane methacrylate (PUMA), vinyl phosphonic acid (VPA), and bis[2-(methacryloyloxy)ethyl] phosphate (BMEP) was exposed to ultraviolet (UV) radiation during the fabrication process. The unique crosslinked configuration of the membrane increased its stability and made it suitable for use with liquid electrolytes. The resulting GPE has a much higher ionic conductivity (1.83 × 10−3S cm−1) than the commercially available Celgrad2500 separator. A crosslinked structure formed by the hydrophilic properties of the PUA-PUMA blend and the higher phosphate content from BMEP reduced the leakage of the electrolyte solution while at the same time providing a greater capacity for liquid retention, significantly improving the mechanical and thermal stability of the membrane. GPP2 shows electrochemical stability up to 3.78 V. The coin cell that was assembled with a LiFePO4cathode had remarkable cycling characteristics and generated a high reversible capacity of 149 mA h g−1at 0.1 C. It also managed to maintain a consistent Coulombic efficiency of almost 100%. Furthermore, 91.5% of the original discharge capacity was maintained. However, the improved ionic conductivity, superior electrochemical performance, and high safety of GPEs hold great promise for the development of flexible energy storage systems in the future. Keywords: gel polymer electrolyte; UV-crosslinking; polyurethane acrylate; polyurethane methacrylate; free-radical polymerization; lithium-ion battery
dc.identifier.citationUyumaz F., Yerkinbekova Y., Kalybekkyzy S., Kahraman M. V., "Photo-Crosslinked Polyurethane—Containing Gel Polymer Electrolytes via Free-Radical Polymerization Method", POLYMERS, cilt.16, sa.18, ss.1-15, 2024
dc.identifier.endpage15
dc.identifier.issn2073-4360
dc.identifier.issue18
dc.identifier.startpage1
dc.identifier.urihttps://www.mdpi.com/2073-4360/16/18/2628
dc.identifier.urihttps://hdl.handle.net/11424/297795
dc.identifier.volume16
dc.language.isoeng
dc.relation.ispartofPOLYMERS
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectKimya
dc.subjectDiğer
dc.subjectTemel Bilimler
dc.subjectChemistry
dc.subjectOther
dc.subjectNatural Sciences
dc.subjectTemel Bilimler (Sci)
dc.subjectDoğa Bilimleri Genel
dc.subjectÇok Disiplinli Bilimler
dc.subjectKimya Uygulamalı
dc.subjectNatural Sciences (Sci)
dc.subjectNatural Sciences General
dc.subjectMultidisciplinary Sciences
dc.subjectChemistry Applied
dc.subjectKimya (çeşitli)
dc.subjectGenel Kimya
dc.subjectProses Kimyası ve Teknolojisi
dc.subjectMultidisipliner
dc.subjectFizik Bilimleri
dc.subjectChemistry (miscellaneous)
dc.subjectGeneral Chemistry
dc.subjectProcess Chemistry and Technology
dc.subjectMultidisciplinary
dc.subjectPhysical Sciences
dc.subjectgel polymer electrolyte
dc.subjectUV-crosslinking
dc.subjectpolyurethane acrylate
dc.subjectpolyurethane methacrylate
dc.subjectfree-radical polymerization
dc.subjectlithium-ion battery
dc.titlePhoto-Crosslinked Polyurethane—Containing Gel Polymer Electrolytes via Free-Radical Polymerization Method
dc.typearticle
dspace.entity.typePublication
local.avesis.idf5953f7d-d1bb-42fb-8b06-7c02b18cd240
relation.isAuthorOfPublication6fd926f9-4cf6-4a5b-9478-bf8241f175cc
relation.isAuthorOfPublication.latestForDiscovery6fd926f9-4cf6-4a5b-9478-bf8241f175cc

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