US 12,113,163 B2
Method of using an electric field for roll-to-roll separator coating
Ruchira Dharmasena, Shelby Township, MI (US); Shuru Chen, Troy, MI (US); Fang Dai, Troy, MI (US); Mei Cai, Bloomfield Hills, MI (US); and Sanaz Ketabi, Holt, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Oct. 20, 2021, as Appl. No. 17/506,446.
Prior Publication US 2023/0121883 A1, Apr. 20, 2023
Int. Cl. H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 50/431 (2021.01); H01M 50/446 (2021.01)
CPC H01M 10/0404 (2013.01) [H01M 10/0525 (2013.01); H01M 50/431 (2021.01); H01M 50/446 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A system for coating a separator for a battery, the system comprising:
a separator feed and collection assembly configured to dispense the separator;
a coating distribution device configured to flow a coating material toward the separator; and
an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator,
wherein the coating material includes a metal oxide and carbon.