US 12,294,047 B2
Laminator for battery assembly
Terri Chai Lin, Fremont, CA (US); Karthik Bhatt, San Jose, CA (US); and Chao Ken Hsu, Fremont, CA (US)
Assigned to Rivian IP Holdings, LLC, Irvine, CA (US)
Filed by Rivian IP Holdings, LLC, Plymouth, MI (US)
Filed on Aug. 17, 2022, as Appl. No. 17/889,966.
Prior Publication US 2024/0063420 A1, Feb. 22, 2024
Int. Cl. B29C 65/00 (2006.01); H01M 4/04 (2006.01); H01M 10/04 (2006.01); H01M 50/46 (2021.01); B29C 65/78 (2006.01); H01M 4/02 (2006.01)
CPC H01M 10/0404 (2013.01) [H01M 4/043 (2013.01); H01M 10/0468 (2013.01); H01M 50/46 (2021.01); B29C 65/7894 (2013.01); B29C 66/83413 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
at least one electrode unwinder configured to unwind a continuous electrode film;
at least one solid electrolyte unwinder configured to unwind a continuous solid electrolyte film;
a laminator configured to receive the continuous electrode film and the continuous solid electrolyte film, as continuous films, and apply from 0.5 tons to 5 tons to densify the continuous electrode film to a press density of from about 0.5-5 g/cm2 and to bond the continuous electrode film to the continuous solid electrolyte film to form a continuous densified electrode film; and
a notcher configured to receive the densified electrode film from the laminator and cut the densified electrode film into a plurality of electrodes,
wherein a web path of the densified electrode film from the laminator to the notcher has a bend angle greater than 165 degrees.