Lockheed Martin Energy, LLC

Timothy B Grejtak

Steven Y Reece

Paravastu Badrinarayanan

Nitin Tyagi

Thomas Harry Madden

Jeremy S Loretz

Srivatsava Venkataranga Puranam

Joseph Johannes Henricus Pijpers

Curtis Warrington

Helen Elizabeth Vanbenschoten

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 O; and wherein the second half-cell chamber does not contain an aqueous electrolyte.

Electrolyte balancing strategies for flow batteries

Electrochemical cells, such as those present within flow batteries, can have an electrode and a bipolar plate in at least one half-cell interfacially bonded together with an electrically conductive adhesive. Bonding the bipolar plate to the electrode can decrease contact resistance and sometimes lessen the incidence of parasitic reactions in the electrochemical cell. Flow batteries containing these features can include: a first half-cell containing a first electrode in interfacial contact with a first bipolar plate, a second half-cell containing a second electrode in interfacial contact with a second bipolar plate, and a separator disposed between the first half-cell and the second half-cell. An electrically conductive adhesive interfacially bonds at least one of the first electrode to the first bipolar plate and the second electrode to the second bipolar plate. Each electrode maintains fluid communication with its corresponding bipolar plate.

Flow batteries having an interfacially bonded bipolar plate-electrode assembly and methods for production and use thereof

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 in contact with a second aqueous electrolyte, said second electrode comprising a catalyst for the generation of O.

Growing community of inventors

Boston, MA, United States of America

Timothy B Grejtak