US 11,757,093 B2
Compositions and methods for multilayer dry coated and wet cast film hybrid electrode films
Joon Ho Shin, San Diego, CA (US); Hieu Minh Duong, Rosemead, CA (US); and Amado Marcelino Garcia Acevedo, Murrieta, CA (US)
Assigned to Tesla, Inc., Austin, TX (US)
Filed by Tesla, Inc., Austin, TX (US)
Filed on Mar. 26, 2020, as Appl. No. 16/831,484.
Claims priority of provisional application 62/826,807, filed on Mar. 29, 2019.
Prior Publication US 2020/0313175 A1, Oct. 1, 2020
Int. Cl. H01M 4/36 (2006.01); H01G 11/28 (2013.01); H01G 11/38 (2013.01); H01M 4/62 (2006.01); H01M 4/88 (2006.01)
CPC H01M 4/366 (2013.01) [H01G 11/28 (2013.01); H01G 11/38 (2013.01); H01M 4/621 (2013.01); H01M 4/8896 (2013.01)] 21 Claims
OG exemplary drawing
1. A multilayer electrode film for use in an energy storage device comprising:
a dry-processed active layer comprising:
a first active material; and
a fibrillized binder;
wherein the dry-processed active layer is free-standing and absent of processing solvent residue; and
a wet-processed active layer comprising:
a second active material; and
at least some processing solvent residue.