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Meyssonnier, C., Merabet, A., Dupre, N., Paireau, C. & Lestriez, B. (2023) Critical Binder-to-Powders Coverage Ratio for Faster Graphite/SiOx Electrode Formulation Optimization. Small Methods, 2301370.
Added by: Richard Baschera (2024-01-04 14:02:30) Last edited by: Richard Baschera (2024-03-05 09:20:54) |
| Type de référence: Article DOI: 10.1002/smtd.202301370 Numéro d'identification (ISBN etc.): 2366-9608 Clé BibTeX: Meyssonnier2023 Voir tous les détails bibliographiques  |
Catégories: IMN, ST2E Mots-clés: Binder, Electrode, Formulation, graphite, polyacrylic acid, silicon, SiO Créateurs: Dupre, Lestriez, Merabet, Meyssonnier, Paireau Collection: Small Methods |
Consultations : 3/112
Indice de consultation : 20% Indice de popularité : 5% |
| Liens URLs https://onlinelibr ... 002/smtd.202301370 |
| Résumé |
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Mastering electrodes’ formulations is a complex and tedious task, because for each composition of electroactive material(s) it is necessary to adjust the inactive additives nature and content to optimize battery performance. In this direction, the amount of binder is proposed to be adjusted to the surface developed by all of the powders involved in the composition of the electrode, i.e., the electroactive materials and electronic conductive additives. This concept, introduces here as binder-to-powders coverage ratio, relies upon the micromechanical models developed in the field of polymer-based composite materials. The validity of this new electrode formulation parameter is shown here for two different SiOx/Graphite blends, which differ in the type of graphite, and for blends of two different binders, polyacrylic acid and styrene−butadiene rubber. At the optimal coverage ratio, a satisfactory capacity retention is obtained in full cell with an ethylene carbonate free and fluoroethylene carbonate rich electrolyte.
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| Notes |
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_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/smtd.202301370
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