Redox flow battery
AssigneeGreen Energy Storage S.R.L.
InventorsIlaria PUCHER, Eneko AZACETA, Elisa MUSELLA
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Abstract
The invention relates to a redox flow battery, to an energy storage system including said redox flow battery, as well as to methods for delivering and/or storing electricity by means of said redox flow battery.
Claims41
A redox flow battery in which a positive electrode electrolyte and a negative electrode electrolyte are supplied to a battery cell including a positive electrode, a negative electrode, a membrane interposed between electrodes, to charge and discharge the battery, wherein:
- said positive electrode electrolyte comprises at least one manganese ion and at least one complexing agent selected from the group consisting of:
- a titanium ion, a tin ion, a chromium ion, an aluminum ion, a vanadium ion, a cerium ion, or mixtures thereof;
- said negative electrode electrolyte comprises at least one active redox species that couples with the manganese ion of the positive electrode electrolyte;
- and
- said positive electrode is a thermally activated carbon-based electrode.
Use of a thermally activated carbon-based electrode in combination with at least one complexing agent selected from the group consisting of:
- a titanium ion, a tin ion, a chromium ion, an aluminum ion, a vanadium ion, a cerium ion, or mixtures thereof, for suppressing the precipitation of MnO2 in an electrolyte comprising at least one manganese ion during the functioning of a redox flow battery in which a redox reaction of said manganese ion in said electrolyte is
Dependencies are inferred from the claim text.