US 12,132,211 B2
Systems and methods for air cathodes
Tyler Schon, Toronto (CA); Sannan Yousaf Toor, Toronto (CA); and Andrew Rassenti, Toronto (CA)
Assigned to e-Zinc Inc., Toronto (CA)
Filed by e-Zinc Inc., Toronto (CA)
Filed on Nov. 5, 2021, as Appl. No. 17/520,177.
Prior Publication US 2023/0146290 A1, May 11, 2023
Int. Cl. H01M 4/66 (2006.01); H01M 4/04 (2006.01); H01M 4/74 (2006.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01)
CPC H01M 4/9016 (2013.01) [H01M 4/8828 (2013.01); H01M 4/8896 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method of manufacturing an air cathode, comprising:
forming a sodium formate solution;
forming a potassium permanganate solution;
mixing the sodium formate solution with the potassium permanganate solution to create a mixture of hausmannite and potassium intercalated manganese oxide to create a catalyst;
shear mixing the mixture of the sodium formate solution with the potassium permanganate solution with carbon colloid and with a gelling agent solution at a rate of 500 rpm to 1000 rpm;
degassing the sheared mixture; and
creating an active mass slurry with the sheared mixture dispersed with polytetrafluoroethylene.