2017
DOI: 10.1016/j.ssi.2017.02.018
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Controlling Li2CuO2 single phase transition to preserve cathode capacity and cyclability in Li-ion batteries

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Cited by 25 publications
(25 citation statements)
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“…It is shown that Cu and O mainly contribute to the DOS of the valence band, driven by the Cu-d and O-p orbitals, while Li and Cu are the main contributors to the conduction band, driven by the Li-p and Cu-p orbitals (refer also to Figure S2 in the Supplementary Information). We also observe the high states of Cu and O just below the VBM and the non-uniformity of the band as presented by two separated contributions, in agreement with a previous study 17 . The effect on the DOS of the introduction of a lithium vacancy in the supercell is minimal (refer to Fig.…”
Section: Resultssupporting
confidence: 92%
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“…It is shown that Cu and O mainly contribute to the DOS of the valence band, driven by the Cu-d and O-p orbitals, while Li and Cu are the main contributors to the conduction band, driven by the Li-p and Cu-p orbitals (refer also to Figure S2 in the Supplementary Information). We also observe the high states of Cu and O just below the VBM and the non-uniformity of the band as presented by two separated contributions, in agreement with a previous study 17 . The effect on the DOS of the introduction of a lithium vacancy in the supercell is minimal (refer to Fig.…”
Section: Resultssupporting
confidence: 92%
“…Recently, Ramos-Sanchez et al . 17 , have reported on this phase transition control and proposed Li 2 CuO 2 for future applications due to its high capacity in pre-charge conditions as well as fast Li + mobility. The partial pressure chemisorption has been also investigated by Lara-Garcia and Pfeiffer 18 .…”
Section: Introductionmentioning
confidence: 99%
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“…Contemplando las necesidades de capacidad y de materiales económicos, se explora al compuesto laminar Li 2 CuO 2 como material catódico por su alta capacidad específica teórica y composición química [29][30][31][32]. La capacidad específica teórica del cuprato de litio es de 490 mAh g -1 , para 2 iones de Li intercalados por fórmula química o 245 mAh g -1 para 1 ion de Li intercalado.…”
Section: Discussionunclassified
“…De Ramos-Sanchez y cols. (2017) 31 obtuvieron una curva de descarga a una velocidad de C/15, valor obtenido usando la capacidad teórica de cuprato de litio (490 mA•h•g -1 ), empleando un método de preparación de material compuesto por mezcla por evaporación de solvente (n-metil, 2 pirrolidona) con material activo, carbón super-p y PVDF a 75:15:10 %p/p; empleando un electrolito LiPF 6 1M en PC:carbonato de etileno (EC) 1:1 %v/v. En la Figura 26 se muestra un modelo a C/15, con una buena concordancia a excepción de última parte de la descarga correspondiente a la segunda mitad de la zona de polarización óhmica y toda la polarización por concentración.…”
Section: Evaluaciónunclassified