US 11,811,066 B2
Compositions and methods for dry electrode films including microparticulate non-fibrillizable binders
Ziying Wang, San Diego, CA (US); Hieu Minh Duong, Rosemead, CA (US); Yudi Yudi, Alameda, CA (US); Joon Ho Shin, San Diego, CA (US); and Prince Magsino, San Diego, CA (US)
Assigned to TESLA, INC., Austin, TX (US)
Filed by Tesla, Inc., Austin, TX (US)
Filed on Nov. 11, 2022, as Appl. No. 18/054,838.
Application 18/054,838 is a division of application No. 16/366,220, filed on Mar. 27, 2019, granted, now 11,545,666.
Claims priority of provisional application 62/650,903, filed on Mar. 30, 2018.
Prior Publication US 2023/0075404 A1, Mar. 9, 2023
Int. Cl. H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01); H01M 4/1393 (2010.01); H01M 4/583 (2010.01); C08L 1/28 (2006.01); C08L 27/16 (2006.01); C08L 27/18 (2006.01)
CPC H01M 4/623 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0435 (2013.01); H01M 4/1393 (2013.01); H01M 4/583 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); C08L 1/286 (2013.01); C08L 27/16 (2013.01); C08L 27/18 (2013.01); C08L 2203/20 (2013.01); Y02E 60/10 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of fabricating a dry electrode film of an energy storage device, comprising:
mixing a dry microparticulate non-fibrillizable binder with a first dry active material by a first nondestructive mixing process to form a dry bulk active material mixture;
mixing a dry fibrillizable binder with a second dry active material by a high shear mixing process to form a dry structural binder mixture;
mixing the dry bulk active material mixture and the dry structural binder mixture by a second nondestructive mixing process to form a dry electrode film mixture; and
producing a free-standing dry electrode film from the dry electrode film mixture.