English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/94187
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Effect of composition, sonication and pressure on the rate capability of 5 V-LiNi0.5Mn1.5O4 composite cathodes

AutorVidal, Elena ; Rojo, J. M. ; García-Alegre Sánchez, María C. ; Guinea Díaz, Domingo ; Soto, Erika ; Amarilla, José Manuel
Palabras claveComposite electrode
Electrode processing
Cathode material
5V-LiNi0.5Mn1.5O4 spinel
Lithium-ion batteries
Fecha de publicación2013
EditorElsevier
CitaciónElectrochimica Acta 108: 175-181 (2013)
ResumenPositive composite electrodes having LiNi0.5Mn 1.5O4 spinel as active material, a blend of graphite and carbon black for increasing the electrode electrical conductivity and either polyvinyldenefluoride (PVDF) or a blend of PVDF with a small amount of Teflon® (1 wt%) for building up the electrode. They have been processed by tape casting on an aluminum foil as current collector using the doctor blade technique. Additionally, the component blends were either sonicated or not, and the processed electrodes were compacted or not under subsequent cold pressing. Composites electrodes with high weight, up to 17mg/cm2, were prepared and studied as positive electrodes for lithium-ion batteries. The addition of Teflon® and the application of the sonication treatment lead to uniform electrodes that are well-adhered to the aluminum foil. Both parameters contribute to improve the capacity drained at high rates (5C). Additional compaction of the electrode/aluminum assemblies remarkably enhances the electrode rate capabilities. At 5C rate, remarkable capacity retentions between 80% and 90% are found for electrodes with weights in the range 3-17mg/cm 2, having Teflon® in their formulation, prepared after sonication of their component blends and compacted under 2 tonnes/cm2. © 2013 Elsevier Ltd. All rights reserved.
URIhttp://hdl.handle.net/10261/94187
DOI10.1016/j.electacta.2013.06.090
Identificadoresdoi: 10.1016/j.electacta.2013.06.090
issn: 0013-4686
Aparece en las colecciones: (CAR) Artículos
(ICMM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.