Nanostructured Thick Electrode Strategies toward Enhanced Electrode-Electrolyte Interfaces
Pokhriyal, Anukriti (Institut Català de Nanociència i Nanotecnologia)
González-Gil, Rosa Maria (Institut Català de Nanociència i Nanotecnologia)
Bengoa, Leonardo N. (Institut Català de Nanociència i Nanotecnologia)
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)

Date:	2023
Abstract:	This article addresses the issue of bulk electrode design and the factors limiting the performance of thick electrodes. Indeed, one of the challenges for achieving improved performance in electrochemical energy storage devices (batteries or supercapacitors) is the maximization of the ratio between active and non-active components while maintaining ionic and electronic conductivity of the assembly. In this study, we developed and compared supercapacitor thick electrodes using commercially available carbons and utilising conventional, easily scalable methods such as spray coating and freeze-casting. We also compared different binders and conductive carbons to develop thick electrodes and analysed factors that determine the performance of such thick electrodes, such as porosity and tortuosity. The spray-coated electrodes showed high areal capacitances of 1428 mF cm at 0. 3 mm thickness and 2459 F cm at 0. 6 mm thickness.
Grants:	Agencia Estatal de Investigación PID2021-128390OB-I00 European Commission 754397 European Commission 101062498 Ministerio de Ciencia e Innovación CEX2021-001214-S Agencia Estatal de Investigación SEV-2017-0706
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Nanostructure ; Thick electrode ; Electrolyte-electrode interface ; Energy storage ; Energy density ; Supercapacitor
Published in:	Materials, Vol. 16, Issue 9 (April 2023) , art. 3439, ISSN 1996-1944

DOI: 10.3390/ma16093439
PMID: 37176321

17 p, 4.1 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles