US 12,407,002 B2
Separator layer for flow battery
Scott Alan Eastman, Glastonbury, CT (US); Wei Xie, East Hartford, CT (US); and Michael L. Perry, Glastonbury, CT (US)
Assigned to RTX CORPORATION, Arlington, VA (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Sep. 12, 2022, as Appl. No. 17/942,474.
Application 17/942,474 is a continuation of application No. 15/079,239, filed on Mar. 24, 2016, abandoned.
Prior Publication US 2023/0016898 A1, Jan. 19, 2023
Int. Cl. H01M 8/0221 (2016.01); H01M 4/86 (2006.01); H01M 4/96 (2006.01); H01M 8/0213 (2016.01); H01M 8/1025 (2016.01); H01M 8/1027 (2016.01); H01M 8/103 (2016.01); H01M 8/1032 (2016.01); H01M 8/18 (2006.01); H01M 8/20 (2006.01); H01M 50/411 (2021.01); H01M 50/414 (2021.01); H01M 50/423 (2021.01); H01M 50/489 (2021.01)
CPC H01M 8/0221 (2013.01) [H01M 4/8605 (2013.01); H01M 4/96 (2013.01); H01M 8/0213 (2013.01); H01M 8/1025 (2013.01); H01M 8/1027 (2013.01); H01M 8/103 (2013.01); H01M 8/1032 (2013.01); H01M 8/188 (2013.01); H01M 8/20 (2013.01); H01M 50/411 (2021.01); H01M 50/414 (2021.01); H01M 50/423 (2021.01); H01M 50/489 (2021.01); H01M 2250/10 (2013.01); Y02B 90/10 (2013.01); Y02E 60/50 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A flow battery comprising:
an electrochemical cell including a first electrode, a second electrode spaced apart from the first electrode, and a separator layer arranged between the first electrode and the second electrode, each of the first electrode and the second electrode configured to operate at a current density of greater than or equal to approximately 100 mA/cm2; and
a supply/storage system external of the electrochemical cell, the supply/storage system including first and second vessels, first and second liquid electrolytes in, respectively, the first and second vessels, fluid lines connecting the first and second vessels to, respectively, the first electrode and the second electrode, and a plurality of pumps operable to circulate the first and second liquid electrolytes via the fluid lines between the first and second vessels and the electrochemical cell, each of the first and second liquid electrolytes comprising an aqueous acid supporting electrolyte,
wherein the separator layer is formed of a polymer having a polymer backbone with triazine aromatic groups and one or more polar groups bonded in the polymer backbone.