Communication Dans Un Congrès Année : 2021

A thermodynamic model representing solid-liquid equilibria in the VOSO4-H2SO4-H2O system based on water activity and solubility measurements

Sébastien Teychené
Delphine Quaranta
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Ranine El Hage
Fabien Chauvet

Résumé

The all-Vanadium Redox Flow Batteries (VRFBs) represent promising candidates as largescale energy storage systems, thanks to their energy efficiency of about 80% in large installations, long cycling life and flexible design (Alotto, 2014). A VRFB consists of two reservoirs from which the electrolytes flow through a stack of electrochemical cells. The V (V) /V (IV) and V (III) /V (II) redox systems are the electroactive materials (at about 2 mol.L -1 ), while the supporting electrolyte is a mixture of water and 2-3 mol.L -1 sulfuric acid.

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Dates et versions

hal-04752738 , version 1 (24-10-2024)

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  • HAL Id : hal-04752738 , version 1

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Laurent Cassayre, Sébastien Teychené, Delphine Quaranta, Ranine El Hage, Fabien Chauvet, et al.. A thermodynamic model representing solid-liquid equilibria in the VOSO4-H2SO4-H2O system based on water activity and solubility measurements. 31st European Symposium on Applied Thermodynamics, Jul 2021, Paris/virtuel, France. ⟨hal-04752738⟩
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