Electrolyte protection compositions and methods
AssigneeUniEnergy Technologies, LLC
InventorsLiyu Li, Chenxi Sun, Jinfeng Wu
Life of this patent
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Abstract
A barrier on the surface of the negative electrolyte solution of a redox flow battery can decrease air oxidation of a charged species in the negative electrolyte solution and can decrease water loss from the negative electrolyte solution. A negative electrolyte tank including a barrier on the surface of the negative electrolyte can have many advantages, including simplified setup, low cost, and low maintenance.
Claims23
A redox flow battery comprising an anolyte tank comprising an anolyte having a surface, a gas atmosphere, and a first liquid or solid barrier between the anolyte and the gas atmosphere, wherein the first liquid or solid barrier is in direct contact with the surface of the anolyte.
A redox flow battery comprising:
- (a) an anolyte tank comprising an anolyte having a surface, a gas atmosphere, and a first liquid or a solid barrier between the anolyte and the gas atmosphere, wherein the first liquid or the solid barrier is in direct contact with the surface of the anolyte;
- (b) an anode in fluid communication with the anolyte tank;
- (c) a catholyte tank comprising a catholyte;
- (d) a cathode in fluid communication with the catholyte tank;
- and
- (e) an ion-permeable separator between the cathode and the anode.
A method of operating a redox flow battery, comprising:
- (a) providing a redox flow battery comprising an anolyte tank comprising an anolyte and a gas atmosphere;
- and
- (b) providing a liquid or solid barrier between the anolyte and the gas atmosphere, wherein the liquid or solid barrier is in direct contact with the surface of the anolyte;
- and
- (c) operating the redox flow battery.
Dependencies are inferred from the claim text.