Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/349957
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | An Insight into the Mechanisms of Energy Storage in a Double Layer Capacitor with ILs and a Microporous Carbon: Experimental Evidences of Ion-Swapping by Electrochemical Impedance Spectroscopy |
Autor: | Quintanal Mera, Noemí; Barreda García, Daniel CSIC ; Blanco Rodríguez, Clara CSIC ORCID ; González Arias, Zoraida CSIC ORCID ; Álvarez Rodríguez, Patricia CSIC ORCID ; Granda Ferreira, Marcos CSIC ORCID ; Sevilla Solís, Marta CSIC ORCID ; Santamaría Ramírez, Ricardo CSIC ORCID | Fecha de publicación: | 1-abr-2023 | Editor: | Institute of Physics (Great Britain) | Citación: | Journal of the Electrochemical Society 170(4): 040528 (2023) | Resumen: | The energy storage mechanism operating in carbon-based supercapacitors using ionic liquids as electrolytes is not yet fully understood. In this paper, the interactions of ions of two widely used ionic liquids, i.e. EMImTFSI and EMImBF4, with a high specific surface area microporous carbon are investigated. Galvanostatic cycling experiments performed on each electrode and in the full cell demonstrate that a specific energy close to 46 Wh kg-1 can be achieved with this carbon. More interestingly, impedance spectroscopy studies reveal the presence of some unusual behavior, such as the presence of inductive elements in some of the electrodes, either in the positive or in the negative electrode. These inductive elements are identified, for the first time, as another type of possible experimental evidences of some phenomena previously proposed, such as ion-swapping or co-ions desorption, both phenomena leading to the formation of the superionic state. | Versión del editor: | https://doi.org/10.1149/1945-7111/acce73 | URI: | http://hdl.handle.net/10261/349957 | DOI: | 10.1149/1945-7111/acce73 | ISSN: | 0013-4651 |
Aparece en las colecciones: | (INCAR) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Quintanal_2023_J._Electrochem._Soc._170_040528.pdf | 2,57 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
1
checked on 29-abr-2024
Page view(s)
23
checked on 29-abr-2024
Download(s)
4
checked on 29-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons