| CPC H01M 8/188 (2013.01) [H01M 8/04313 (2013.01); H01M 50/46 (2021.01); H01M 50/673 (2021.01)] | 17 Claims |
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1. An iron redox flow battery system comprising:
a redox electrode in fluid communication to a first electrolyte tank with a catholyte;
a plating electrode in fluid communication to a second electrolyte tank with an anolyte;
a rebalancing cell in fluid communication with the redox electrode and configured to reduce active species from the catholyte;
a second rebalancing cell in fluid communication with the first electrolyte tank and the second electrolyte tank such that the first electrolyte tank and the second electrolyte tank are in direct fluid communication;
a monitoring device configured to provide an obtained value relating to a condition of the catholyte, or the anolyte, or both; and,
a controller in communication with the monitoring device, the controller comprising non-transitory computer-readable media storing executable instructions that, when executed, cause the controller to:
compare the obtained value against a threshold value; and
when the obtained value is above or below a threshold, displace a volume of the catholyte from the first electrolyte tank to the second rebalancing cell to reduce ferric cations in the catholyte.
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