Mostrar o rexistro simple do ítem
Influence of aluminum doping on the properties of LiCoO2 and LiNi0.5Co0.5O2 oxides
dc.contributor.author | Castro-García, Socorro | |
dc.contributor.author | Castro Couceiro, Ada | |
dc.contributor.author | Señarís-Rodríguez, M. A. | |
dc.contributor.author | Soulette, F. | |
dc.contributor.author | Julien, C. | |
dc.date.accessioned | 2015-02-09T15:33:13Z | |
dc.date.available | 2015-02-09T15:33:13Z | |
dc.date.issued | 2003-01 | |
dc.identifier.citation | Castro-García S, Castro-Couceiro A, Señarís-Rodríguez MA, Soulette F, Julien C. Influence of aluminum doping on the properties of LiCoO2 and LiNi0.5Co0.5O2 oxides. Solid State Ionics. 2003;156(1-2):15-26 | es_ES |
dc.identifier.issn | 0167-2738 | |
dc.identifier.uri | http://hdl.handle.net/2183/14033 | |
dc.description.abstract | We have prepared LiCo1−yAlyO2 and LiNi0.5−yAlyCo0.5O2 (0≤y≤0.3) powder samples by a low temperature sol–gel method using succinic acid as chelating agent. We have studied the details of their crystallographic and local structure by X-ray diffraction (XRD) and FTIR spectroscopy, respectively; we have analyzed their chemical composition by ICP and obtained information about the morphology of the polycrystalline particles by SEM. Also, we have studied the electrochemical performance of the as-prepared materials in the LiLiNi0.5−yAlyCo0.5O2 cells cycled in the potential range 2.5–4.2 V finding that the overall capacity of the oxides has been reduced due to the metal substitution. For example, at 4.2 V cut-off, the charge capacity of the LiLiNi0.35Al0.15Co0.5O2 cell is ca. 115 mA h/g. However, more stable charge–discharge cycling performances have been obtained as compared to those displayed by the native oxides. Finally, we have characterized the kinetics of Li-diffusion by the galvanostatic intermittent titration technique and, according to our results, Al substitution provides an increase in the chemical diffusion coefficients of Li ions in the LiNi0.5−yAlyCo0.5O2 matrix. | es_ES |
dc.description.sponsorship | Spanish and French Foreing Office; PAI Picasso 00717TC | |
dc.description.sponsorship | Spanish and French Foreing Office; HF 1999-0101 | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.uri | http://dx.doi.org/10.1016/s0167-2738(02)00570-2 | es_ES |
dc.subject | Lithium aluminum cobalt oxide | es_ES |
dc.subject | Lithium battery | es_ES |
dc.subject | Sol–gel synthesis | es_ES |
dc.subject | Cathode material | es_ES |
dc.subject | Lithium cobalt oxide | es_ES |
dc.subject | Lithium nickel oxide | es_ES |
dc.title | Influence of aluminum doping on the properties of LiCoO2 and LiNi0.5Co0.5O2 oxides | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
Ficheiros no ítem
Este ítem aparece na(s) seguinte(s) colección(s)
-
GI- Quimolmat - Artigos [110]