US 12,469,837 B2
Patterned electrodes
Celia Cunningham, Northville, MI (US); Andrew Robert Drews, Ann Arbor, MI (US); and Ali Rashti, Canton, MI (US)
Assigned to FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Apr. 19, 2024, as Appl. No. 18/640,565.
Prior Publication US 2025/0329704 A1, Oct. 23, 2025
Int. Cl. H01M 4/04 (2006.01); B41M 5/00 (2006.01); H01M 4/139 (2010.01)
CPC H01M 4/0404 (2013.01) [B41M 5/0047 (2013.01); H01M 4/139 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
coating a conductive substrate with an electrode slurry of solvent, active material, binder, and additives to form a wet electrode; and
injecting a column of miscible non-solvent fluid into a surface of the wet electrode to displace the electrode slurry around the column and initiate non-solvent-induced phase inversion of the binder in contact with the miscible non-solvent fluid such that the binder in contact with the miscible non-solvent fluid solidifies around the column into a solid-free channel at the surface of and into the wet electrode.