Nafion/aquivion-based composite lithium ion exchange membranes for high capacity Li-S batteries

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dc.contributor.authorDombaycıoğlu, Şeyma
dc.contributor.authorGünsel, Hilal
dc.contributor.authorAydın, Ali Osman
dc.date.accessioned2022-10-31T08:13:28Z
dc.date.available2022-10-31T08:13:28Z
dc.date.issued2022
dc.departmentİstanbul Medipol Üniversitesi, Eczacılık Fakültesi, Temel Eczacılık Bilimleri Bölümü, Analitik Kimya Ana Bilim Dalı
dc.description.abstractLithiated Nafion (Li-Naf) and lithiated Aquivion (Li-Aqu) ion exchange membranes are applied as electrolyte and separator to prevent the polysulfide shuttle effect in Li?S batteries. The production and characterization of Li-Naf, Li-Aqu, and their composites (2 : 1, 1 : 1, and 1 : 2; w/w) are carried out. The ion exchange capacity and polysulfide transition of the produced membranes are examined and structural characterizations are conducted via Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and field emission scanning electron microscopy (FESEM). CR2032 half cells are assembled in order to perform electrochemical analysis. The electrochemical performances of the membranes are investigated by cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge-discharge tests. Due to the low equivalent weight of Aquivion, the ion exchange capacity and ionic conductivity of the membrane enhance with the increasing amount of Li-Aqu in the composite membrane. Because of the synergistic effect of Nafion and Aquivion, Li-Naf : Li-Aqu/1 : 2 composite offers 61.2 % capacity retention and the best electrochemical discharge capacity of 826 mAhg?1 after 100 charge-discharge cycles. As a result, Nafion and Aquivion composite membranes can successfully inhibit the shuttle movement of negatively charged polysulfide species while allowing the transition of positively charged lithium ions for high performed Li?S batteries.
dc.identifier.citationDombaycıoğlu, Ş., Günsel, H. ve Aydın, A. O. (2022). Nafion/aquivion-based composite lithium ion exchange membranes for high capacity Li-S batteries. ChemistrySelect, 7(39). https://doi.org/10.1002/slct.202202910
dc.identifier.doi10.1002/slct.202202910
dc.identifier.issn2365-6549
dc.identifier.issue39
dc.identifier.scopus2-s2.0-85140267795
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1002/slct.202202910
dc.identifier.urihttps://hdl.handle.net/20.500.12511/9895
dc.identifier.volume7
dc.identifier.wos000869775800001en_US
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorAydın, Ali Osman
dc.language.isoen
dc.publisherWiley-VCH Verlag GmbH
dc.relation.ispartofChemistrySelecten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.relation.tubitakinfo:eu-repo/grantAgreement/TUBITAK/SOBAG/118M265
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectAquivion
dc.subjectComposite Membrane Separator
dc.subjectIon Exchange Electrolyte
dc.subjectLiS Batteries
dc.subjectNafion
dc.titleNafion/aquivion-based composite lithium ion exchange membranes for high capacity Li-S batteries
dc.typeArticle

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