US 12,206,144 B2
Polysulfide-based aqueous redox flow battery with soluble organic catalyst
Yi-Chun Lu, Hong Kong (CN); and Jiafeng Lei, Guangdong (CN)
Assigned to The Chinese University of Hong Kong, Hong Kong (CN)
Filed by The Chinese University of Hong Kong, Hong Kong (CN)
Filed on Mar. 25, 2022, as Appl. No. 17/705,171.
Prior Publication US 2023/0307682 A1, Sep. 28, 2023
Int. Cl. H01M 8/18 (2006.01); H01M 4/02 (2006.01); H01M 4/96 (2006.01); H01M 8/08 (2016.01)
CPC H01M 8/188 (2013.01) [H01M 4/96 (2013.01); H01M 8/08 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0002 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An aqueous redox flow battery, comprising:
a positive electrode;
a negative electrode;
a posolyte chamber containing a posolyte in a solvent;
a negolyte chamber containing a polysulfide based negolyte and a soluble organic catalyst in a solvent, and
a separator disposed between the posolyte chamber and the negolyte chamber, wherein:
the soluble organic catalyst has a potential lower than the polysulfide based negolyte; and
a ratio of a concentration of the negolyte to a concentration of the soluble organic catalyst is 20 to 500.