Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/268699
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | First 18650-format Na-ion cells aging investigation: A degradation mechanism study |
Autor: | Nguyen, Long H. B.; Sanz Camacho, Paula; Fondard, Jérémie; Carlier, Dany; Croguennec, Laurence; Palacín, M. Rosa CSIC ORCID ; Ponrouch, Alexandre; Courrèges, Cécile; Dedryvère, Rémi; Trad, Khiem; Jordy, Christian; Genies, Sylvie; Reynier, Yvan; Simonin, Loic | Palabras clave: | Solid-electrolyte interphase Cycle-life Cathode materials Batteries |
Fecha de publicación: | 1-may-2022 | Editor: | Elsevier | Citación: | Journal of Power Sources 529: 231253 (2022) | Resumen: | Several Hard carbon||Na3V2(PO4)2F3 full-cells in 18650-format are assembled to demonstrate the possible use of SIBs in stationary applications. The cell aging process is investigated in two different conditions: (i) continuous cycling at different current rates, and (ii) storage at different states-of-charge at various temperatures. The obtained results reveal that the cell degradation depends strongly on the temperature, current rates applied in cycling conditions, or state-of-charge of the storage test. Under cycling conditions, the continuous sodiation/desodiation may induce significant mechanical deformation, leading to the detachment of active materials from the current collector. Furthermore, the post-mortem analysis shows that reaction rate and aging process are not homogeneous along the electrode roll. The XRD analysis shows that Na3V2(PO4)2F3 structure is robust; nevertheless, the material cannot recover the initial Na+ content as the cycling progresses, which is the main cause for capacity loss in the positive electrode. The solid-electrolyte interphase present on the hard carbon surface was characterised using XPS. The hard carbon electrode cannot be detected during this study, evidencing the formation of a relatively thick (>5 nm) passivating layer composed of carbonate salts and NaF, which are the main products of electrolyte decomposition. | Versión del editor: | http://dx.doi.org/10.1016/j.jpowsour.2022.231253 | URI: | http://hdl.handle.net/10261/268699 | DOI: | 10.1016/j.jpowsour.2022.231253 | ISSN: | 0378-7753 |
Aparece en las colecciones: | (ICMAB) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | Existing users please Login |
---|---|---|---|---|
Nguyen_JPowerSourc_2022_postprint.pdf | Artículo principal | 1,94 MB | Adobe PDF | Embargoed until 1 de mayo de 2024 Petición de una copia |
Nguyen_JPowerSourc_2022_suppl_postprint.pdf | Información complementaria | 1,86 MB | Adobe PDF | Embargoed until 1 de mayo de 2024 Petición de una copia |
CORE Recommender
SCOPUSTM
Citations
9
checked on 19-abr-2024
WEB OF SCIENCETM
Citations
6
checked on 24-feb-2024
Page view(s)
36
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.