Methods and systems for rebalancing electrolytes for a redox flow battery system

Evans, Craig E.

Title: Methods and systems for rebalancing electrolytes for a redox flow battery system

Patent · Tue Nov 14 00:00:00 EST 2023

OSTI ID:2293867

Evans, Craig E.

A rebalancing reactor for a redox flow battery system may include a first side through which hydrogen gas is flowed, a second side through which electrolyte from the redox flow battery system is flowed, and a porous layer separating and fluidly coupled to the first side and the second side, wherein, the hydrogen gas and the electrolyte are fluidly contacted at a surface of the porous layer, and a pressure drop across the second side is less than a pressure drop across the porous layer. In this way, rebalancing of electrolyte charges in a redox flow battery system may be performed with increased efficiency and cost effectiveness as compared to conventional rebalancing reactors.

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Research Organization:: ESS Tech, Inc., Wilsonville, OR (United States)

Sponsoring Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E)

DOE Contract Number:: AR0000261

Assignee:: ESS Tech, Inc. (Wilsonville, OR)

Patent Number(s):: 11,817,606

Application Number:: 15/965,728

OSTI ID:: 2293867

Resource Relation:: Patent File Date: 04/27/2018

Country of Publication:: United States

Language:: English

References (14)

Method and system for rebalancing electrolytes in a redox flow battery system Evans, Craig E.; Song, Yang https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9509011 US Patent Document 9,509,011	patent	November 2016
Performance enhancement of iron-chromium redox flow batteries by employing interdigitated flow fields Zeng, Y. K.; Zhou, X. L.; Zeng, L. Journal of Power Sources, Vol. 327 https://doi.org/10.1016/j.jpowsour.2016.07.066	journal	September 2016
In-situ electrolyte preparation in flow battery Li, Weina; Perry, Michael L. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160093925 US Patent Application 14/892586; 20160093925	patent-application	March 2016
Battery management system and method of operating same Yun, Han-Seok; Lee, Young Jo; Seo, Se-Wook https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7800345 US Patent Document 7,800,345	patent	September 2010
Systems and Methods for Rebalancing Redox Flow Battery Electrolytes Pham, Ai Quoc; Chang, On Kok https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140272483 US Patent Application 14/207795; 20140272483	patent-application	September 2014
A hydrogen-ferric ion rebalance cell operating at low hydrogen concentrations for capacity restoration of iron-chromium redox flow batteries Zeng, Y. K.; Zhao, T. S.; Zhou, X. L. Journal of Power Sources, Vol. 352 https://doi.org/10.1016/j.jpowsour.2017.03.125	journal	June 2017
Supply system for fuel cells of the S.P.E. (solid polymer electrolyte) type for hybrid vehicles Andreoli, Giuseppe L.; Federici, Flavio https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5605770 US Patent Document 5,605,770	patent	February 1997
Redox Flow Cell Rebalancing Keshavarz, Majid; Karuppaiah, Chockkalingam; Zu, Ge https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110086247 US Patent Document 12/790573; 20110086247	patent-application	April 2011
Redox flow battery and method of operating it Zocchi, Andrea https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6692862 US Patent Document 6,692,862	patent	February 2004
Method and system for rebalancing electrolytes in a redox flow battery system Song, Yang; Evans, Craig E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160293992 US Patent Application 15/182543; 20160293992	patent-application	October 2016
Rebalancing Electrolytes In Redox Flow Battery Systems Chang, On Kok; Pham, Ai Quoc https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130084482 US Patent Application 13/433189; 20130084482	patent-application	April 2013
Single capacity balancing in a redox flow battery Li, Liyu; Sun, Chenxi; Wu, Jinfeng https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160006054 US Patent Application 14/793711; 20160006054	patent-application	January 2016
Method and system for rebalancing electrolytes in a redox flow battery system Evans, Craig E.; Song, Yang https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140363747 US Patent Application 14/199794; 20140363747	patent-application	December 2014
Method and system to maintain electrolyte stability for all-iron redox flow batteries Evans, Craig E.; Song, Yang https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20150255824 US Patent Application 14/588225; 20150255824	patent-application	September 2015

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