High-Performance Full Sodium Cells Based on MgO-Treated P2-Type Na0.67(Mn0.5Fe0.5)1-xCoxO2 Cathodes

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dc.authoridALTUNDAĞ, Sebahat/0000-0002-4777-8376
dc.authoridALTIN, Serdar/0000-0002-4590-907X
dc.authoridAteş, Mehmet Nurullah/0000-0002-3557-6769
dc.authoridStoyanova, Radostina/0000-0002-5815-5131
dc.authorwosidKoleva, Violeta/AAV-4800-2020
dc.authorwosidALTUNDAĞ, Sebahat/AAB-4167-2021
dc.authorwosidALTIN, Serdar/H-4880-2014
dc.authorwosidAteş, Mehmet Nurullah/IQU-9690-2023
dc.authorwosidStoyanova, Radostina/E-9705-2012
dc.contributor.authorTaskiran, Nermin
dc.contributor.authorAltundag, Sebahat
dc.contributor.authorKoleva, Violeta
dc.contributor.authorAltin, Emine
dc.contributor.authorArshad, Muhammad
dc.contributor.authorAvci, Sevda
dc.contributor.authorAtes, Mehmet Nurullah
dc.date.accessioned2024-08-04T20:54:47Z
dc.date.available2024-08-04T20:54:47Z
dc.date.issued2023
dc.departmentİnönü Üniversitesien_US
dc.description.abstractHerein, we design a cathode material based on layered Na-2/3(Mn1/2Fe1/2)O-2 for practical application by combining the Co substitution and MgO treatment strategies. The oxides are prepared via solid-state reactions at 900 degrees C. The structure, morphology, and oxidation state of transition metal ions for Co-substituted and MgO-treated oxides are carefully examined via X-ray diffraction, IR and Raman spectroscopies, FESEM with EDX, specific surface area measurement, and XPS spectroscopy. The ability of oxides to store sodium reversibly is analyzed within a temperature range of 10 to 50 degrees C via CV experiments, galvanostatic measurements, and EIS, using half and full sodium ion cells. The changes in the local structure and oxidation state of transition metal ions during Na+ intercalation are monitored via operando XAS experiments. It is found that the Co substituents have a positive impact on the rate capability of layered oxides, while Mg additives lead to a strong increase in the capacity and an enhancement of the cycling stability. Thus, the highest capacity is obtained for 2 at.%-MgO-treated Na-2/3(Mn1/2Fe1/2)(0.9)Co0.1O2 (175 mAh/g, with a capacity fade of 28% after 100 cycles). In comparison with Co substituents, the Mg treatment has a crucial role in the improvement of the lattice stability during the cycling process. The best electrode materials, with a chemical formula of 2 at.%-MgO treated Na-2/3(Mn1/2Fe1/2)(0.9)Co0.1O2, were also used for the full cells design, with hard carbon as an anode. In the voltage window of 2-4 V, the capacity of the cells was obtained as 78 mAh/g and 51 mAh/g for applied current densities of 12 mA/g and 60 mA/g, respectively.en_US
dc.description.sponsorshipThe authors would like to thank Inonu University Research Council for the financial support (project number FYL-2021-2436), the Rock Beamline in soleil synchrotron, France, and TENMAK-Turkey for financial support during synchrotron tests in France. The aut [FYL-2021-2436]; Inonu University Research Council [KP-06-DO02/3, 18.05.2023]; project MASTER Center (M-ERA) [BG05M2OP001-1.001-0008]; Project CoE National Center of Mechatronics and Clean Technologies; European Regional Development Fund within the Operational Programme Science and Educationen_US
dc.description.sponsorshipThe authors would like to thank Inonu University Research Council for the financial support (project number FYL-2021-2436), the Rock Beamline in soleil synchrotron, France, and TENMAK-Turkey for financial support during synchrotron tests in France. The authors acknowledged the financial support of the project MASTER Center (M-ERA, KP-06-DO02/3, 18.05.2023). Partial support from Project CoE National Center of Mechatronics and Clean Technologies BG05M2OP001-1.001-0008 within the European Regional Development Fund within the Operational Programme Science and Education for Smart Growth 2014-2020.en_US
dc.identifier.doi10.3390/batteries9100497
dc.identifier.issn2313-0105
dc.identifier.issue10en_US
dc.identifier.scopus2-s2.0-85175249593en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.3390/batteries9100497
dc.identifier.urihttps://hdl.handle.net/11616/101638
dc.identifier.volume9en_US
dc.identifier.wosWOS:001093386400001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMdpien_US
dc.relation.ispartofBatteries-Baselen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectsodium-ion batteriesen_US
dc.subjectlayered oxidesen_US
dc.subjectNa0.67MnO2en_US
dc.subjectco substitutionen_US
dc.subjectoperando XASen_US
dc.titleHigh-Performance Full Sodium Cells Based on MgO-Treated P2-Type Na0.67(Mn0.5Fe0.5)1-xCoxO2 Cathodesen_US
dc.typeArticleen_US

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