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Liu, S., Douard, C., Brousse, T. & Balducci, A. (2024) The Impact of Formate-Based Electrolytes on The Electrochemical Performance of Asymmetric Supercapacitors Containing Activated Carbon and MnO2 as Electrode Materials. J. Electrochem. Soc. 171 020506.
Added by: Richard Baschera (2024-04-16 07:24:22) Last edited by: Richard Baschera (2024-04-16 07:48:30) |
| Type de référence: Article DOI: 10.1149/1945-7111/ad2396 Numéro d'identification (ISBN etc.): 1945-7111 Clé BibTeX: Liu2024 Voir tous les détails bibliographiques  |
Catégories: IMN, INTERNATIONAL, ST2E Créateurs: Balducci, Brousse, Douard, Liu Collection: J. Electrochem. Soc. |
Consultations : 3/3
Indice de consultation : 4% Indice de popularité : 1% |
| Liens URLs https://dx.doi.org ... 9/1945-7111/ad2396 |
| Résumé |
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In this work we report on the properties of three novel aqueous electrolytes containing 1 m (mol kg−1) of lithium formate, sodium formate and potassium formate in H2O. We show that these cheap and environmentally friendly electrolytes display high conductivity and low viscosity from 0 °C to 80 °C. When used in asymmetric supercapacitors (SCs) containing Manganese dioxide (MnO2) as active material in the positive electrode and activated carbon (AC) as active material in the negative electrode, these electrolytes allow the design of devices with operating voltage up to 1.7 V. Asymmetric SC containing these novel electrolytes display good capacity (19 mAh g−1, 18 mAh g−1 and 13 mAh g−1 in 1 m HCOOK in H2O, 1 m HCOOLi in H2O and 1 m HCOONa in H2O, respectively). The capacity retention after 10,000 cycles of the devices containing 1 m HCOOLi in H2O, 1 m HCOONa in H2O and 1 m HCOOK in H2O are all higher than 85%.
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Publisher: IOP Publishing
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