Electrolyte balancing strategies for flow batteries
AssigneeLockheed Martin Energy, LLC
InventorsSteven Y. Reece, Paravastu Badrinarayanan, Nitin Tyagi, Timothy B. Grejtak
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Abstract
The present invention is directed to a redox flow battery comprising at least one electrochemical cell in fluid communication with a balancing cell, said balancing cell comprising: a first and second half-cell chamber, wherein the first half-cell chamber comprises a first electrode in contact with a first aqueous electrolyte of the redox flow battery; and wherein the second half-cell chamber comprises a second electrode comprising a catalyst for the generation of O2; and wherein the second half-cell chamber does not contain an aqueous electrolyte.
Claims20
A redox flow battery comprising at least one electrochemical cell in fluid communication with a balancing cell, said balancing cell comprising:
- a first and second half-cell chamber separated by a membrane,
- wherein the first half-cell chamber comprises a first electrode in contact with a first aqueous electrolyte of the redox flow battery;
- and
- wherein the second half-cell chamber comprises a second electrode comprising a catalyst for generation of O2;
- and
- wherein the second half-cell chamber does not contain an aqueous electrolyte.
A working balancing cell, comprising:
- a first and second half-cell chamber separated by a membrane,
- wherein the first half-cell chamber comprises a first electrode in contact with a first aqueous electrolyte of an electrochemical device;
- and
- wherein the second half-cell chamber is free of added aqueous electrolyte.
Dependencies are inferred from the claim text.