Arrêt de service programmé du vendredi 10 juin 16h jusqu’au lundi 13 juin 9h. Pour en savoir plus
Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

On chip MnO2-based 3D micro-supercapacitors with ultra-high areal energy density

Abstract : In the near future, Internet of Things will be widely deployed all over the connected world. Powering will be crucial for miniaturized electronic devices requiring fast charging, high energy density and long term-durability. 3D micro-supercapacitors are an attractive energy storage solution at the millimeter scale to power miniaturized IoT devices exhibiting small form factor packaging issues. However, there are nowadays not any microdevices on the shelves that could fulfill both energy and mass production requirements. Here, we demonstrate the collective fabrication of 3D micro-supercapacitors (MSCs) integrated on silicon wafer and using MnO2 as the active electrode material and 5 M aqueous LiNO3 as the electrolyte. 0.05 - 0.1 mWh cm(-2) energy densities reached by the fabricated 3D MSCs are remarkable, exceeding those of state-of-the-art micro-supercapacitors, competing those of hybrid microdevices and approaching the performance of lithium micro-batteries. Without sacrificing the power performance (> 1 mW cm(-2)), the 3D MSCs demonstrate a very good cycling behavior over 10 000 cycles (similar to 15% loss).
Liste complète des métadonnées
Contributeur : Icg Aigle Connectez-vous pour contacter le contributeur
Soumis le : mercredi 30 juin 2021 - 14:46:58
Dernière modification le : vendredi 13 mai 2022 - 13:52:11
Archivage à long terme le : : vendredi 1 octobre 2021 - 18:36:12


MSC3D_ MnO2_march2021.pdf
Fichiers produits par l'(les) auteur(s)



Botayna Bounor, Bouchra Asbani, Camille Douard, Frédéric Favier, Thierry Brousse, et al.. On chip MnO2-based 3D micro-supercapacitors with ultra-high areal energy density. Energy Storage Materials, Elsevier, 2021, 38, pp.520-527. ⟨10.1016/j.ensm.2021.03.034⟩. ⟨hal-03253618⟩



Consultations de la notice


Téléchargements de fichiers