LiNi0.8Co0.15Ti0.05O2: synthesis by solid state reaction and investigation of structural and electrochemical properties with enhanced battery performance

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dc.authoridALTIN, Serdar/0000-0002-4590-907X
dc.authoridALTUNDAĞ, Sebahat/0000-0002-4777-8376
dc.authoridSahinbay, Sevda/0000-0002-5482-4772
dc.authoridAltin, Emine/0000-0002-2187-4036
dc.authorwosidOz, Erdinc/GXW-0937-2022
dc.authorwosidALTIN, Serdar/H-4880-2014
dc.authorwosidALTUNDAĞ, Sebahat/AAB-4167-2021
dc.authorwosidbayri, ali/AAA-5966-2021
dc.authorwosidSahinbay, Sevda/Q-7698-2018
dc.authorwosidALTIN, EMINE/AHE-9774-2022
dc.contributor.authorBayri, A.
dc.contributor.authorGocer, E.
dc.contributor.authorAltin, E.
dc.contributor.authorAltundag, S.
dc.contributor.authorOz, E.
dc.contributor.authorHarfouche, M.
dc.contributor.authorAltin, S.
dc.date.accessioned2024-08-04T20:49:07Z
dc.date.available2024-08-04T20:49:07Z
dc.date.issued2020
dc.departmentİnönü Üniversitesien_US
dc.description.abstractSolid state synthesis is an essential technique for large-scale production of electrode active materials in battery industry. However, solid state synthesis of LiNi0.8Co0.15Al0.05O2(NCA), which is a well-known commercial cathode material for Li-ion batteries, provides electrochemically inactive compound. Here, we report the solid state synthesis of Li(x)Ni(0.8)Co(0.15)Ti(0.05)O(2)wherex = 1.03, 1.06, and 1.09, which is a modified version of conventional NCA. Our thorough studies consist of characterization of compounds by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and magnetization measurements. The results point out the significant effects of Li content on structural and magnetic properties of the samples. Battery performance tests show that Li(1.06)Ni(0.8)Co(0.15)Ti(0.05)O(2)exhibits better cycling properties than conventional NCA. X-ray absorption spectroscopy (XAS) technique is utilized to determine structural modifications upon cycling of this compound via ex-situ analysis. We conclude that substitution of Ti ions in Li(1.06)Ni(0.8)Co(0.15)Ti(0.05)O(2)improves the cycling capability of the cells by reducing the formation of NiO insulating layer which hinders the redox reactions. The capacity value ofx = 1.06 sample increases up to 150 mAh g(-1)at C/3 rate during cycling and the capacity fade is negative for the first 10 cycles. Possible mechanism for the negative capacity fade is also discussed.en_US
dc.description.sponsorshipIUBAP (Inonu University Scientific Research Council) [FYL-2018-1424]; SESAME [20185036]; Scientific Research Council of Istanbul Medeniyet University [F-GAP-2019-1498]en_US
dc.description.sponsorshipProf. A. Bayri would like to thank IUBAP (Inonu University Scientific Research Council) for financial support by the Contract Number of FYL-2018-1424. Prof. S. Altin would like to acknowledge SESAME for XAS experiments with Project Number 20185036. Work at Istanbul Medeniyet University was supported by Scientific Research Council of Istanbul Medeniyet University under Grant No. F-GAP-2019-1498.en_US
dc.identifier.doi10.1007/s10854-020-04572-4
dc.identifier.endpage20538en_US
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue22en_US
dc.identifier.scopus2-s2.0-85097263303en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage20527en_US
dc.identifier.urihttps://doi.org/10.1007/s10854-020-04572-4
dc.identifier.urihttps://hdl.handle.net/11616/99660
dc.identifier.volume31en_US
dc.identifier.wosWOS:000579612000008en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Materials Science-Materials in Electronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectX-Ray-Absorptionen_US
dc.subjectLinio2 Cathode Materialen_US
dc.subjectLithium-Ion Batteriesen_US
dc.subjectLien_US
dc.subjectSpectroscopyen_US
dc.subjectFabricationen_US
dc.subjectMechanismsen_US
dc.subjectSurfaceen_US
dc.subjectLicoo2en_US
dc.titleLiNi0.8Co0.15Ti0.05O2: synthesis by solid state reaction and investigation of structural and electrochemical properties with enhanced battery performanceen_US
dc.typeArticleen_US

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