| Téléchargement | - Voir les données supplémentaires : Performance of carbon-nickel composite coatings on laser surface roughened aluminum foils for supercapacitor current collectors (PDF, 298 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1149/1945-7111/abf914 |
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| Auteur | Rechercher : Yang, Dongfang1Identifiant ORCID : https://orcid.org/0000-0003-3804-9726; Rechercher : Laforgue, Alexis1Identifiant ORCID : https://orcid.org/0000-0003-3848-7531 |
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| Affiliation | - Conseil national de recherches Canada. Automobile et les transports de surface
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| Format | Texte, Article |
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| Résumé | Surface-engineered aluminum current collectors were developed through laser-based surface modification methods. Their performances as current collectors in supercapacitors clearly outperformed state-of-the-art carbon-coated commercial foils and were close to ideal gold foils, thanks to the enhanced interfaces provided by their engineered surfaces. Surface modifications included roughening by laser ablation in high vacuum, and coating with a carbon-nickel (C₀.₉₇Ni₀.₀₃) composite thin film deposited using pulsed laser deposition. The main improvement was obtained after coating the aluminum foil with the carbon-nickel protective layer, which was attributed to the almost pure sp² bonding state of the carbon and a mostly metallic nickel phase. The surface roughening treatment further decreased the interface resistance by providing a higher contact surface and a better mechanical anchorage of the active materials layer. The combination of laser roughening in vacuum conditions and subsequent deposition of an electronically conductive protective coating was therefore demonstrated as an efficient approach to improve the performance of current collectors for supercapacitors. |
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| Date de publication | 2021-04-30 |
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| Maison d’édition | IOP
Electrochemical Society (ECS) |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 15dd06e8-791f-4e71-bce8-af667715eacc |
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| Enregistrement créé | 2021-12-10 |
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| Enregistrement modifié | 2021-12-10 |
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