US 12,283,726 B2
Flow battery system
Richard O. Winter, El Macero, CA (US); Kathryn M. Oseen-Senda, Seattle, WA (US); Brian Aher, Seattle, WA (US); Jonathan Horner, Everett, WA (US); Guanguang Xia, Everett, WA (US); Jinfeng Wu, Mukilteo, WA (US); Erik K. L. Johnson, Everett, WA (US); and Jason I. Cruz, Kirkland, WA (US)
Assigned to VENTURE LENDING & LEASING VIII, INC., Portola Valley, CA (US)
Filed by UniEnergy Technologies, LLC, Mukilteo, WA (US)
Filed on Feb. 3, 2022, as Appl. No. 17/592,382.
Application 17/592,382 is a continuation of application No. 16/226,396, filed on Dec. 19, 2018, granted, now 11,276,870.
Claims priority of provisional application 62/607,842, filed on Dec. 19, 2017.
Prior Publication US 2024/0186543 A1, Jun. 6, 2024
Int. Cl. H01M 8/04082 (2016.01); C01B 7/01 (2006.01); H01M 8/04276 (2016.01); H01M 8/18 (2006.01)
CPC H01M 8/04201 (2013.01) [C01B 7/012 (2013.01); H01M 8/04276 (2013.01); H01M 8/188 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A redox flow battery (RFB), comprising:
a shell having a shell height;
an electrolyte storage tank assembly disposed in the shell, wherein at least a portion of the electrolyte storage tank assembly is supported by the shell, the electrolyte storage tank assembly having an electrolyte liquid height, wherein the electrolyte liquid height is at or below the shell height;
an electrochemical cell; and
an electrolyte circulation system configured for fluid communication between the electrolyte storage tank assembly and the electrochemical cell, wherein the electrolyte circulation system includes a pump assembly, wherein the pump assembly is moveable along the shell height between a first position, where the pump assembly is positioned below the electrolyte liquid height, and a second position, where the pump assembly is positioned above the electrolyte liquid height, wherein the pump assembly is positioned at the first position during operation of the pump assembly and at the second position when the pump assembly is not operating.