US 11,955,677 B2
Redox flow battery systems and methods utilizing primary and secondary redox flow battery arrangements
Liyu Li, Bellevue, WA (US); and Qingtao Luo, Mukilteo, WA (US)
Assigned to COUGAR CREEK TECHNOLOGIES, LLC, Kirkland, WA (US)
Filed by COUGAR CREEK TECHNOLOGIES, LLC, Kirkland, WA (US)
Filed on Jun. 29, 2021, as Appl. No. 17/362,543.
Claims priority of provisional application 63/174,352, filed on Apr. 13, 2021.
Claims priority of provisional application 63/154,547, filed on Feb. 26, 2021.
Claims priority of provisional application 63/147,182, filed on Feb. 8, 2021.
Claims priority of provisional application 63/131,738, filed on Dec. 29, 2020.
Claims priority of provisional application 63/127,048, filed on Dec. 17, 2020.
Claims priority of provisional application 63/126,408, filed on Dec. 16, 2020.
Claims priority of provisional application 63/120,204, filed on Dec. 2, 2020.
Claims priority of provisional application 63/114,160, filed on Nov. 16, 2020.
Prior Publication US 2022/0158213 A1, May 19, 2022
Int. Cl. H01M 8/04537 (2016.01); C22C 1/00 (2023.01); C22C 27/06 (2006.01); H01M 4/38 (2006.01); H01M 8/04186 (2016.01); H01M 8/04276 (2016.01); H01M 8/04858 (2016.01); H01M 8/08 (2016.01); H01M 8/18 (2006.01); H01M 16/00 (2006.01); H01M 4/86 (2006.01); H01M 8/06 (2016.01)
CPC H01M 8/188 (2013.01) [C22C 1/00 (2013.01); C22C 27/06 (2013.01); H01M 4/38 (2013.01); H01M 8/04186 (2013.01); H01M 8/04276 (2013.01); H01M 8/04544 (2013.01); H01M 8/04611 (2013.01); H01M 8/04932 (2013.01); H01M 8/08 (2013.01); H01M 16/003 (2013.01); H01M 2004/8694 (2013.01); H01M 8/0693 (2013.01); H01M 2300/0002 (2013.01); H01M 2300/0005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A redox flow battery system, comprising:
an anolyte;
a catholyte;
an anolyte tank configured for holding at least a portion of the anolyte;
a catholyte tank configured for holding at least a portion of the catholyte;
a primary redox flow battery arrangement comprising
a first half-cell comprising a first electrode in contact with the anolyte,
a second half-cell comprising a second electrode in contact with the catholyte,
a first separator separating the first half-cell from the second half-cell,
a first anolyte pump configured for moving the anolyte between the first half-cell and the anolyte tank, and
a first catholyte pump configured for moving the catholyte between the second half-cell and the catholyte tank, and
a secondary redox flow battery arrangement comprising
a third half-cell comprising a third electrode in contact with the anolyte,
a fourth half-cell comprising a fourth electrode in contact with the catholyte,
a second separator separating the third half-cell from the fourth half-cell,
a second anolyte pump configured for moving the anolyte between the third half-cell and the anolyte tank, and
a second catholyte pump configured for moving the catholyte between the fourth half-cell and the catholyte tank;
wherein a peak power delivery capacity of the secondary redox flow battery arrangement is less than a peak power delivery capacity of the primary redox flow battery arrangement.