Improved battery performance of silicon modified Na0.67Fe0.5Mn0.5O2 and its structural and electrochemical properties: An investigation of infrared thermal imaging

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dc.authoridALTUNDAĞ, Sebahat/0000-0002-4777-8376
dc.authoridALTIN, Serdar/0000-0002-4590-907X
dc.authoridAltin, Emine/0000-0002-2187-4036
dc.authorwosidALTUNDAĞ, Sebahat/AAB-4167-2021
dc.authorwosidALTIN, EMINE/AHE-9774-2022
dc.authorwosidALTIN, Serdar/H-4880-2014
dc.contributor.authorAltin, S.
dc.contributor.authorAltundag, E.
dc.contributor.authorAltin, E.
dc.contributor.authorAltundag, S.
dc.date.accessioned2024-08-04T20:50:26Z
dc.date.available2024-08-04T20:50:26Z
dc.date.issued2021
dc.departmentİnönü Üniversitesien_US
dc.description.abstractHere, we present a systematically Si-doping strategy to improve the structural stability and battery performances of P2-type Na0.67Mn0.5Fe0.5O2 samples. Through Si4+ doping intended to settlement of the interstitial region in the crystal structure and investigate the effect on the electrical conductivity of the Na0.67Mn0.5Fe0.5O2. The structural properties were examined by x-ray absorption near-edge structure (XANES), x-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) measurements. The XANES spectra showed that the valence of both Manganese and iron ions was unchanged by Si. According to charge/discharge cycling measurements for constant current at room temperature, the lowest capacity fade was obtained for Na0.67Mn0.5Fe0.48Si0.02O2. The cycling measurements were also investigated at 50 degrees C, and it was observed that the electrochemical properties were changed with temperature. It was developed an experimental setup for the measurements of the internal temperature of the battery cells during the charging/discharging process of CR2032 coin cells using an infrared thermal camera. The ohmic heat was calculated from chronoamperometry measurements using a developed setup, and the heat generation was explained by a quadratic equation in the system.en_US
dc.description.sponsorshipTUBITAK [119M169]; SESAME [20185036]; Inonu University Research Council [FYL-2020-2094]en_US
dc.description.sponsorshipThe authors would like to thank TUBITAK for financial support by contract number 119M169. Prof. S. Altin would like to thank SESAME for XAS experiments with project number 20185036. We also want to thank the EU CALIPSO program for traveling and accommodation sup-port during to SESAME experiments. The study also supported by Inonu University Research Council by the project number of FYL-2020-2094.en_US
dc.identifier.doi10.1016/j.est.2021.102979
dc.identifier.issn2352-152X
dc.identifier.scopus2-s2.0-85111270701en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.est.2021.102979
dc.identifier.urihttps://hdl.handle.net/11616/100069
dc.identifier.volume41en_US
dc.identifier.wosWOS:000707773700009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Energy Storageen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNa0.67Fe0.5Mn0.5O2en_US
dc.subjectSi-modificationen_US
dc.subjectin-situ IR-thermal imagingen_US
dc.titleImproved battery performance of silicon modified Na0.67Fe0.5Mn0.5O2 and its structural and electrochemical properties: An investigation of infrared thermal imagingen_US
dc.typeArticleen_US

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