Li1+xFePO4 (x=0-0.5) production from Fe3+ sources by glass-ceramic technique with different carbon sources and investigation of structural, thermal and electrochemical performance

dc.authoridALTUNDAĞ, Sebahat/0000-0002-4777-8376
dc.authoridAltin, Emine/0000-0002-2187-4036
dc.authoridAltin, Serdar/0000-0002-4590-907X
dc.authorwosidALTUNDAĞ, Sebahat/AAB-4167-2021
dc.contributor.authorAltin, E.
dc.contributor.authorAltundag, S.
dc.contributor.authorGultek, E.
dc.contributor.authorAltin, S.
dc.date.accessioned2024-08-04T20:51:47Z
dc.date.available2024-08-04T20:51:47Z
dc.date.issued2022
dc.departmentİnönü Üniversitesien_US
dc.description.abstractLi1+xFePO4 (x=0 - 0.5) samples were successfully fabricated by the glass-ceramics technique with quenching from high temperatures. Thermal properties were analyzed by DTA, TG and the glass transition temperature, crystallization activation energy and Avrami parameters were calculated as 3.99 indicating that three dimensions of growth and one representing a constant nucleation rate. The XRD analysis shows that there are two-phase of LiFePO4 and Li3Fe2P3O12 which compete with each other according to increasing heat treatment temperatures. Glucose and ascorbic acid were used as the carbon source for increasing the conductivity of the powders during to crystallization process with different heating and cooling rates and it was found that the heating/cooling rates are effective for battery performance. The battery cells exhibit similar cycling voltammetry (CV) data with the undoped LiFePO4 battery cells. The charging/discharging cycles measurements for C/5- rate and C/20- rate for different environmental temperatures were made and it was found that the best capacity values for different carbon sources were obtained as 165.8 mAh/g and 169.9 mAh/g for using ascorbic acid and glucose addition, respectively. The environmental effect on the battery performance was investigated and the Li-diffusion rate depending on the temperature was calculated and it was found that the diffusion rate obtained from CV curves for 50 degrees C, room temperature, and 10 degrees C and the diffusion activation energy were found as 2.93 and 8.03 meV for glucose and ascorbic acid respectively.en_US
dc.description.sponsorshipTUBITAK [121M066]; Inonu University Research Council [FBG-2020-217]en_US
dc.description.sponsorshipAcknowledgment The authors would like to thank TUBITAK for financial support by contract number 121M066 and Inonu University Research Council by the project number of FBG-2020-217.en_US
dc.identifier.doi10.1016/j.jnoncrysol.2022.121546
dc.identifier.issn0022-3093
dc.identifier.issn1873-4812
dc.identifier.scopus2-s2.0-85126838241en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.jnoncrysol.2022.121546
dc.identifier.urihttps://hdl.handle.net/11616/100555
dc.identifier.volume586en_US
dc.identifier.wosWOS:000789682000004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Non-Crystalline Solidsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLiFePO4en_US
dc.subjectGlass-ceramicsen_US
dc.subjectLithium-ion batteriesen_US
dc.subjectCathodeen_US
dc.titleLi1+xFePO4 (x=0-0.5) production from Fe3+ sources by glass-ceramic technique with different carbon sources and investigation of structural, thermal and electrochemical performanceen_US
dc.typeArticleen_US

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