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Bizot, C., Blin, M.-A., Guichard, P., Hamon, J., Fernandez, V., Soudan, P., Gaubicher, J. & Poizot, P. (2021) Aluminum current collector for high voltage Li-ion battery. Part I: A benchmark study with statistical analysis. Electrochemistry Communications, 126 107013. 
Added by: Richard Baschera (2021-06-03 09:39:02)   Last edited by: Richard Baschera (2021-09-16 16:31:50)
Type de référence: Article
DOI: 10.1016/j.elecom.2021.107013
Numéro d'identification (ISBN etc.): 1388-2481
Clé BibTeX: Bizot2021
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Catégories: IMN, ST2E
Mots-clés: Al current collector, Anodic dissolution, Benchmark study, Corrosive electrolyte, Statistical analysis
Créateurs: Bizot, Blin, Fernandez, Gaubicher, Guichard, Hamon, Poizot, Soudan
Collection: Electrochemistry Communications
Consultations : 1/185
Indice de consultation : 6%
Indice de popularité : 1.5%
The protection of current collectors against anodic dissolution at high potential has been identified as crucial for next generation of high energy and safe lithium-ion batteries. Herein, a systematic study of the electrochemical behavior of two grades of aluminum current collectors has been performed in five representative liquid electrolytes. Analysis of electrochemical data and microscopy images have notably shown that aluminum current collectors appear to be stable up to 5 V vs. Li+/Li in the presence of the reactive LiPF6 salt whereas imide salts trigger the aluminum anodic dissolution except in ionic liquid medium. It was also observed that the grade of the tested aluminum current collectors had little impact. To support the robustness of this study dedicated to practical developments of the ?5 V? Li-ion battery technology, a statistical analysis has been performed for the most corrosive electrolyte formulation (1 M LiTFSI/[EC/DMC]). These data show the anodic dissolution systematically occurs in a reproducible way whatever the sampling area of the aluminum foil.
Place: STE 800, 230 PARK AVE, NEW YORK, NY 10169 USA Publisher: ELSEVIER SCIENCE INC Type: Article
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