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Suppressing Corrosion of Aluminum Foils via Highly Conductive Graphene-like Carbon Coating in High-Performance Lithium-Based Batteries.
Li, Xia; Deng, Sixu; Banis, Mohammad Norouzi; Doyle-Davis, Kieran; Zhang, Dongxing; Zhang, Tengyuan; Yang, Jun; Divigalpitiya, Ranjith; Brandys, Frank; Li, Ruying; Sun, Xueliang.
Afiliación
  • Li X; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Deng S; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Banis MN; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Doyle-Davis K; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Zhang D; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Zhang T; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Yang J; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Divigalpitiya R; 3M Canada Company , 1840 Oxford Street East , London , ON N5V 3R6 , Canada.
  • Brandys F; 3M Canada Company , 1840 Oxford Street East , London , ON N5V 3R6 , Canada.
  • Li R; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
  • Sun X; Department of Mechanical and Materials Engineering , University of Western Ontario , London , ON N6A 5B9 , Canada.
ACS Appl Mater Interfaces ; 11(36): 32826-32832, 2019 Sep 11.
Article en En | MEDLINE | ID: mdl-31414592
Aluminum foil is the predominant cathodic current collector in lithium-based batteries due to the high electronic conductivity, stable chemical/electrochemical properties, low density, and low cost. However, with the development of next-generation lithium batteries, Al current collectors face new challenges, such as the requirement of increased chemical stability at high voltage, long-cycle-life batteries with different electrolyte systems, as well as improved electronic conductivity and adhesion for new electrode materials. In this study, we demonstrate a novel graphene-like carbon (GLC) coating on the Al foil in lithium-based batteries. Various physical and electrochemical characterizations are conducted to reveal the electronic conductivity and electrochemical stability of the GLC-Al foil in both carbonate- and ether-based electrolytes. Full-cell tests, including Li-S batteries and high-voltage Li-ion batteries, are performed to demonstrate the significantly improved cycling and rate performance of batteries with the use of the GLC-Al foil as current collectors. The cell using the GLC-Al foil can greatly reduce the potential polarization in Li-S batteries and can obtain a reversible capacity of 750 mAh g-1 over 100 cycles at 0.5C. Even with high-sulfur-loading cathodes, the Li-S battery at 1C still maintains over 500 mAh g-1 after 100 cycles. In high-voltage Li-ion batteries, the GLC-Al foil significantly improves the high-rate performance, showing an increased retained capacity by over 100 mAh g-1 after 450 cycles at 1C compared to the bare foil. It is believed that the developed GLC-Al foil brings new opportunities to enhance the battery life of lithium-based batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2019 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2019 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Estados Unidos