Artículo
Novel NiO surface coating on LiCoO2 cathode for Li-ion batteries
Fecha de publicación:
09/2022
Editorial:
Elsevier Science
Revista:
Materials Science and Engineering B: Solid State Materials for Advanced Technology
ISSN:
0921-5107
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Crystalline LiCoO2 nanoparticles were coated with NiO nanocrystals. The coating was made using a one-pot strategy by solution combustion synthesis with different weight percentages. The method used is simple, economical, and easily scalable. The resulting materials were characterized morphologically, structurally, and electrochemically by transmission and scanning electron microscopy, charge/discharge cycles, rate capability, voltammetry, and electrochemical impedance spectroscopy techniques. The results showed that a uniform coating with crystalline NiO nanoparticles on the LiCoO2 was obtained. For optimal coating, the discharge capacity reached 74% retention after 100 cycles between 3.0 and 4.5V at 0.1C, while the uncoated material retained only 5% of its initial capacity. Thus, the introduced NiO coating protects the LiCoO2 electrode against the unwanted reactions that occur in contact with the electrolyte at high voltage. Therefore, the irreversible loss of the active material capacity will be minimized.
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Articulos (UE-INN - NODO BARILOCHE)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Benavides Castillo, Lisbeth Alexandra; Moreno, Mario Sergio Jesus; Cuscueta, Diego Javier; Novel NiO surface coating on LiCoO2 cathode for Li-ion batteries; Elsevier Science; Materials Science and Engineering B: Solid State Materials for Advanced Technology; 283; 9-2022; 1-7
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