US 12,255,370 B2
Electrode assembly for a redox flow battery
Sean Casey, Oregon City, OR (US); Craig Evans, West Linn, OR (US); Thiago Groberg, Tigard, OR (US); and Yang Song, West Linn, OR (US)
Assigned to ESS TECH, INC., Wilsonville, OR (US)
Filed by ESS TECH, INC., Wilsonville, OR (US)
Filed on Apr. 5, 2023, as Appl. No. 18/296,170.
Application 18/296,170 is a continuation of application No. 17/308,913, filed on May 5, 2021, granted, now 11,677,093.
Claims priority of provisional application 63/025,227, filed on May 15, 2020.
Prior Publication US 2023/0261238 A1, Aug. 17, 2023
Int. Cl. H01M 8/248 (2016.01); H01M 8/0247 (2016.01); H01M 8/18 (2006.01)
CPC H01M 8/248 (2013.01) [H01M 8/0247 (2013.01); H01M 8/188 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A redox flow battery, comprising:
a cell stack comprising a plurality of cells, each cell of the plurality of cells comprising:
a positive electrode and a negative electrode, wherein the positive electrode comprises a first set of zones with a first permeability and a second set of zones with a second permeability different than the first permeability, and wherein zones of the first set of zones alternate with zones of the second set of zones.