US 12,255,368 B2
Electrolyte balancing strategies for flow batteries
Steven Y. Reece, Cambridge, MA (US); Paravastu Badrinarayanan, Cypress, TX (US); Nitin Tyagi, San Jose, CA (US); and Timothy B. Grejtak, Boston, MA (US)
Assigned to Lockheed Martin Energy, LLC, Bethesda, MD (US)
Filed by Lockheed Martin Energy, LLC, Bethesda, MD (US)
Filed on Nov. 9, 2023, as Appl. No. 18/505,711.
Application 17/526,671 is a division of application No. 16/295,546, filed on Mar. 7, 2019, granted, now 11,271,233, issued on Mar. 8, 2022.
Application 16/295,546 is a division of application No. 15/025,225, granted, now 10,249,897, issued on Apr. 2, 2019, previously published as PCT/US2014/057129, filed on Sep. 24, 2014.
Application 18/505,711 is a continuation of application No. 17/526,671, filed on Nov. 15, 2021, granted, now 11,843,147.
Claims priority of provisional application 61/882,324, filed on Sep. 25, 2013.
Prior Publication US 2024/0079620 A1, Mar. 7, 2024
Int. Cl. H01M 8/06 (2016.01); H01M 4/90 (2006.01); H01M 8/04223 (2016.01); H01M 8/1023 (2016.01); H01M 8/1039 (2016.01); H01M 8/1051 (2016.01); H01M 8/1053 (2016.01); H01M 8/18 (2006.01); H01M 8/20 (2006.01)
CPC H01M 8/0693 (2013.01) [H01M 4/9016 (2013.01); H01M 8/04238 (2013.01); H01M 8/1023 (2013.01); H01M 8/1039 (2013.01); H01M 8/1051 (2013.01); H01M 8/1053 (2013.01); H01M 8/188 (2013.01); H01M 8/20 (2013.01); Y02E 60/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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.