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Guillemin, T., Douard, C., Robert, K., Asbani, B., Lethien, C., Brousse, T. & Le Bideau, J. (2022) Solid-state 3D micro-supercapacitors based on ionogel electrolyte: Influence of adding lithium and sodium salts to the ionic liquid. Energy Storage Materials, 50 606–617. 
Added by: Richard Baschera (2022-07-08 09:05:59)   Last edited by: Richard Baschera (2022-07-08 09:07:13)
Type de référence: Article
DOI: 10.1016/j.ensm.2022.05.041
Numéro d'identification (ISBN etc.): 2405-8297
Clé BibTeX: Guillemin2022
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Catégories: IMN, PMN, ST2E
Mots-clés: Interdigitated-3D-scaffold, Ionogel, Li-Na, Microsupercapacitor, MnO
Créateurs: Asbani, Brousse, Douard, Guillemin, Le Bideau, Lethien, Robert
Collection: Energy Storage Materials
Consultations : 35/118
Indice de consultation : 34%
Indice de popularité : 8.5%
Liens URLs     https://www.scienc ... /S2405829722002926
Résumé     
The ever-increasing interest in miniaturized Internet of Things devices and embedded electronics has given rise to a host of inquiries surrounding the need for safe, high performance energy storage devices. Solid-state 3D micro-supercapacitors based on ionogels provide a promising response to many of these pressing questions. Herein, leakage-free solid-state-like 3D micro-supercapacitors incorporating lithium and sodium salts added to 1-Ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide-based ionogels were investigated. The resulting micro-supercapacitors containing these lithium and sodium ions displayed energy densities of 10.2 and 9.5 µWh.cm−2 at power densities of 1.1 and 1.0 mW.cm−2, respectively. In those devoid of these alkaline ions, however, the energy density reached a mere 3 µWh.cm−2 at the same power density, thereby validating the proposed strategy. The 3D interdigitated MnO2 // MnO2 micro-supercapacitors were cycled 50 000 times at 1.75 mA.cm−2 with good capacitance retention (∼ 85 %). While performing under high temperatures (100°C), there was no evidence of electrolyte degradation, capacitance fading or electrolyte leakage.
  
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