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Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode
dc.creator | Milović, Miloš | |
dc.creator | Vujković, Milica | |
dc.creator | Jugović, Dragana | |
dc.creator | Mitrić, Miodrag | |
dc.date.accessioned | 2021-06-24T13:02:26Z | |
dc.date.available | 2021-06-24T13:02:26Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0272-8842 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/11645 | |
dc.description.abstract | Electrochemical and structural properties of LiV2O5 cathode were investigated. Obtained by solid state reaction at high temperature the material crystallized as gamma polymorph phase, γ-LiV2O5. The gamma structure provides two crystallographic sites to accommodate lithium ions, Li1 and Li2 position. Lithium insertion at these two sites occurs at two respective voltages versus lithium metal: ~3.6 V (Li1) and ~2.4 V (Li2). Intercalation at Li1 position is reversible in both organic and aqueous electrolyte and provides stable cycling performance at the high voltage. On the contrary, sluggish insertion/removal of Li+ at Li2 sites causes unstable performance and significant storage capacity fade at lower voltages. Lithium diffusion 3d landscape was determined by bond valence calculations applied on the γ-LiV2O5 phase, as well as on the metastable phases of γ′-V2O5 and ζ-Li2V2O5 that exist at high and low voltages respectively. The model was proposed based on inactivity of Li2 position of the metastable ζ-Li2V2O5 phase which provides explanation for the observed storage capacity loss at low voltages. | |
dc.publisher | Elsevier BV | en |
dc.relation | info:eu-repo/grantAgreement/ScienceFundRS/Promis/6062667/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200175/RS// | |
dc.relation.isversionof | https://hdl.handle.net/21.15107/rcub_dais_11655 | |
dc.relation.isreferencedby | https://hdl.handle.net/21.15107/rcub_dais_11646 | |
dc.rights | restrictedAccess | |
dc.source | Ceramics International | en |
dc.subject | Li-ion batteries | |
dc.subject | cathode materials | |
dc.subject | LiV2O5 | |
dc.subject | Gamma phase | |
dc.subject | Bond valence model | |
dc.title | Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode | en |
dc.type | article | en |
dc.rights.license | ARR | en |
dcterms.abstract | Миловић, Милош; Вујковић, Милица; Митрић, Миодраг; Југовић, Драгана; | |
dc.citation.spage | 17077 | |
dc.citation.epage | 17083 | |
dc.citation.volume | 47 | |
dc.citation.issue | 12 | |
dc.identifier.wos | 000648865900003 | |
dc.identifier.doi | 10.1016/j.ceramint.2021.03.016 | |
dc.identifier.scopus | 2-s2.0-85102469472 | |
dc.description.other | Supplementary information: [https://hdl.handle.net/21.15107/rcub_dais_11646] | |
dc.type.version | publishedVersion | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_11645 |