000168611 001__ 168611
000168611 005__ 20260211123813.0
000168611 0247_ $$2doi$$a10.1016/j.est.2026.120760
000168611 0248_ $$2sideral$$a147994
000168611 037__ $$aART-2026-147994
000168611 041__ $$aeng
000168611 100__ $$aIbáñez, Álvaro$$uUniversidad de Zaragoza
000168611 245__ $$aInfluence of the physical properties of electrolytes on the behavior of all-vanadium redox flow batteries
000168611 260__ $$c2026
000168611 5060_ $$aAccess copy available to the general public$$fUnrestricted
000168611 5203_ $$aElectrolyte flow rate has a large impact on the overall efficiency and energy storage capacity of all‑vanadium redox flow batteries. This work focuses on the detailed determination of density and viscosity of vanadium electrolytes as a function of temperature and state of charge, as well as their influence on the actual electrolyte flow rate. Negative and positive electrolytes present different density and viscosity values and they also evolve differently, the divergence being especially significant in the dynamic viscosity. Mathematical correlations of experimental data are provided, and the influence of these properties on both hydraulic and electrochemical performance of the device is also discussed. An ad hoc experimental facility was manufactured where a 200 W battery was tested to assess the relevance of the different hydraulic conditions on the pressure drop and efficiency. A notable decrease in the total duration of the 5 charge/discharge cycles when the circulating flow rates were progressively reduced was observed. The average efficiency of the battery varied from 73.9% to 67.5% when decreasing the flow rate levels. In addition, a low-cost computational model was developed to estimate the circulating flow rate of each electrolyte and to discriminate the contribution of the specific pressure loss from the different components of the facility for a given operating condition.
000168611 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T06-23R$$9info:eu-repo/grantAgreement/ES/DGA/T53-24$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-126001OB-C32$$9info:eu-repo/grantAgreement/ES/MICINN/PID2024-158394OB-C21
000168611 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000168611 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000168611 700__ $$aMontiel, Manuel
000168611 700__ $$aTejero, Andrés
000168611 700__ $$0(orcid)0000-0002-3391-7291$$aOrtiz de Landazuri, Ignacio
000168611 700__ $$0(orcid)0000-0003-4141-6072$$aLozano, Antonio
000168611 700__ $$0(orcid)0000-0002-0063-1318$$aBarroso, Jorge$$uUniversidad de Zaragoza
000168611 700__ $$0(orcid)0000-0002-5391-8021$$aBarreras, Félix
000168611 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000168611 773__ $$g152, Parte C (2026), 120760 [14 pp.]$$pJ. energy storage$$tJournal of Energy Storage$$x2352-152X
000168611 8564_ $$s13781530$$uhttps://zaguan.unizar.es/record/168611/files/texto_completo.pdf$$yVersión publicada
000168611 8564_ $$s2665247$$uhttps://zaguan.unizar.es/record/168611/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000168611 909CO $$ooai:zaguan.unizar.es:168611$$particulos$$pdriver
000168611 951__ $$a2026-02-11-10:28:15
000168611 980__ $$aARTICLE