US 12,463,201 B2
Dry electrode manufacture with lubricated active material mixture
Linda Zhong, Sacramento, CA (US); Erika Shaw, Sacramento, CA (US); and Bae Kyun Kim, Sacramento, CA (US)
Assigned to LICAP TECHNOLOGIES, INC., Sacramento, CA (US)
Filed by LICAP TECHNOLOGIES, INC., Sacramento, CA (US)
Filed on Oct. 17, 2022, as Appl. No. 17/967,408.
Application 17/967,408 is a continuation of application No. 17/014,862, filed on Sep. 8, 2020, granted, now 11,508,956.
Prior Publication US 2023/0056854 A1, Feb. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0567 (2010.01)
CPC H01M 4/364 (2013.01) [H01M 4/0435 (2013.01); H01M 4/139 (2013.01); H01M 4/621 (2013.01); H01M 4/661 (2013.01); H01M 10/0567 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of manufacturing a free-standing electrode film, the method comprising:
preparing a mixture including an electrode active material, a binder, and an additive solution, the additive solution being in an amount less than 5% by weight of the mixture and including a polymer additive and a liquid carrier, the mixture having total solid contents greater than 95% by weight, said preparing comprising mixing the additive solution with the electrode active material to lubricate the electrode active material and subsequently adding the binder;
subjecting the mixture to a shear force; and,
after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film.