US 12,132,192 B2
Direct coating of electrodes in silicon-dominant anode cells
Fred Bonhomme, Irvine, CA (US); Benjamin Park, Irvine, CA (US); Kirk Shockley, Irvine, CA (US); Giulia Canton, Irvine, CA (US); and David J. Lee, Irvine, CA (US)
Assigned to ENEVATE CORPORATION, Irvine, CA (US)
Filed by Enevate Corporation, Irvine, CA (US)
Filed on Feb. 27, 2023, as Appl. No. 18/114,697.
Application 18/114,697 is a continuation of application No. 17/321,085, filed on May 14, 2021, granted, now 11,594,714.
Application 17/321,085 is a continuation of application No. 16/683,241, filed on Nov. 13, 2019.
Claims priority of provisional application 62/854,935, filed on May 30, 2019.
Prior Publication US 2023/0238507 A1, Jul. 27, 2023
Int. Cl. H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/1393 (2010.01); H01M 4/1395 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/0471 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0409 (2013.01); H01M 4/0435 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/1393 (2013.01); H01M 4/1395 (2013.01); H01M 2004/027 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for electrode processing, the method comprising:
applying a slurry to a current collector film, the slurry comprising silicon particles and a binder material;
processing the slurry to form a precursor composite film coated on the current collector film;
rolling the current collector film with the coated precursor composite film into a precursor composite roll;
applying a heat treatment to the current collector film with the coated precursor composite film in an environment comprising nitrogen gas;
wherein the heat treatment is configured for converting the coated precursor composite film to a pyrolyzed composite film coated on the current collector film; and
wherein the heat treatment comprises one or both of:
applying the heat treatment to a roll comprising the precursor composite roll in whole; and
applying the heat treatment to the current collector film with the coated precursor composite film as it is continuously fed from the precursor composite roll.