US 12,237,491 B2
Multi-layered coating formed by different processes
Gunho Kwak, Novi, MI (US); Patrick Pietrasz, Rochester, NY (US); and Chi Paik, Grosse Ile, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Aug. 12, 2022, as Appl. No. 17/886,555.
Prior Publication US 2024/0055574 A1, Feb. 15, 2024
Int. Cl. H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01)
CPC H01M 4/0404 (2013.01) [H01M 4/0409 (2013.01); H01M 4/366 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for forming one or more layers of a lithium-ion battery comprising:
sequentially depositing a wet coating and a free-standing material layer onto a moving substrate to form a first bilayer on the moving substrate, the first bilayer including a wet coating-derived layer and the free-standing material layer, the moving substrate being composed of a metal, wherein the moving substrate is a current collector; and
heat roll pressing the first bilayer to form a second bilayer in which the wet coating-derived layer is at least partially dried and adhered to the free-standing material layer, wherein the wet coating-derived layer includes a first positive electrode active material and the free-standing material layer each includes a second positive electrode active material such that the second bilayer is a positive electrode.