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US 11,664,512 B2Granted
Methods and system for redox flow battery idle state
AssigneeEss Tech, Inc.
InventorsYang Song, Timothy J. McDonald, Kenneth Fisher
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for a redox flow battery system. In one example, a method of operating a redox flow battery system includes switching the redox flow battery system to an idle mode and completely draining electrolytes from one or more electrode compartments of the redox flow battery system. The one or more electrode compartments may be purged with a gas and refilled with fresh electrolytes.
Claims16
A method of operating a redox flow battery system, the method comprising:
- responsive to switching the redox flow battery system to an idle mode, wherein the idle mode includes operation of the redox flow battery system outside of a charging mode and outside of a discharging mode,
- completely draining electrolytes from one or more electrode compartments of the redox flow battery system;
- purging the one or more electrode compartments with a gas;
- and
- refilling the one or more electrode compartments with fresh electrolytes, wherein the electrolytes are completely drained from the one or more electrode compartments responsive to a first threshold period of time elapsing, and
- wherein the method further comprises, in response to a second threshold period of time elapsing while the redox flow battery system is in the idle mode, the second threshold period of time shorter than the first threshold period of time, activating an electrolyte pump to circulate the electrolytes through the one or more electrode compartments.
3 more elements
A method of operating a redox flow battery system, the method comprising:
- switching the redox flow battery system to an idle mode, wherein the idle mode includes operation of the redox flow battery system outside of a charging mode and outside of a discharging mode;
- responsive to a first threshold period of time elapsing while the redox flow battery system is in the idle mode,
- activating an electrolyte pump to circulate electrolyte through at least one electrode compartment of the redox flow battery system;
- and
- responsive to a second threshold period of time elapsing while the redox flow battery system is in the idle mode, the second threshold period of time longer than the first threshold period of time,
- completely draining the at least one electrode compartment, purging the at least one electrode compartment with a gas, and periodically refilling the at least one electrode compartment with fresh electrolyte.
3 more elements
Dependencies are inferred from the claim text.