Mediated alkaline flow batteries: from fundamentals to application

Paez, Teresa; Martinez-Cuezva, Alberto; Palma, Jesus; Ventosa, Edgar

Publication:
Mediated alkaline flow batteries: from fundamentals to application

dc.contributor.author	Paez, Teresa
dc.contributor.author	Martinez-Cuezva, Alberto
dc.contributor.author	Palma, Jesus
dc.contributor.author	Ventosa, Edgar
dc.contributor.department	Química Orgánica
dc.date.accessioned	2021-11-03T17:15:39Z
dc.date.available	2021-11-03T17:15:39Z
dc.date.issued	2019-10-21
dc.description.abstract	Alkaline flow batteries are attracting increasing attention for stationary energy storage. Very promising candidates have been proposed as active species for the negative compartment, while potassium ferrocyanide (K4Fe(CN)6) has been the only choice for the positive one. The energy density of this family of batteries is limited by the low solubility of K4Fe(CN)6 in alkaline media. Herein, we propose a general strategy to increase the energy density of this family of alkaline flow batteries by storing energy in commercial Ni(OH)2 electrodes confined in the positive reservoir. In this way, K4Fe(CN)6 dissolved in the electrolyte acts not only as electroactive species but also as charge carrier between current collector and solid Ni(OH)2 particles located in an external reservoir. A storage capacities of 29 Ah L–1 for the positive compartment is demonstrated. The concept is implemented in three systems, Zn–K4Fe(CN)6, anthraquinone–K4Fe(CN)6, and phenazine–K4Fe(CN)6 alkaline flow battery, showing the versatility of the strategy. Challenges and future directions to exceed the 16 Wh Ltotal–1 demonstrated in this work are discussed.	es
dc.format	application/pdf	es
dc.format.extent	11	es
dc.identifier.citation	ACS Appl. Energy Mater. 2019, 2, 11, 8328–8336
dc.identifier.doi	10.1021/acsaem.9b01826
dc.identifier.issn	2574-0962
dc.identifier.uri	http://hdl.handle.net/10201/113625
dc.language	eng	es
dc.relation	Nombre del proyecto: DEVELOPMENT OF NOVEL CATALYTIC SYSTEMS. SYNTHESIS AND STUDY OF HYDROGEN-BONDED MECHANICALLY INTERLOCKED MOLECULES. Código: RYC-2017-22700. Agencia/entidad financiadora: MINISTERIO DE ECONOMÍA, INDUSTRIA Y COMPETITIVIDAD. Ámbito Nacional. Ayudas Ramón y Cajal. Convocatoria 2017	es
dc.relation.publisherversion	https://pubs.acs.org/doi/abs/10.1021/acsaem.9b01826	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Batteries	es
dc.subject	Energy	es
dc.subject.other	CDU::5 - Ciencias puras y naturales::54 - Química::547 - Química orgánica	es
dc.title	Mediated alkaline flow batteries: from fundamentals to application	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es