US 12,394,774 B2
Compositions and methods for dry electrode films having reduced binder content
Yudi Yudi, Alameda, CA (US); Hieu Minh Duong, Rosemead, CA (US); and Joon Ho Shin, San Diego, CA (US)
Assigned to Tesla, Inc., Austin, TX (US)
Filed by Tesla, Inc., Austin, TX (US)
Filed on Aug. 23, 2023, as Appl. No. 18/454,625.
Application 18/454,625 is a continuation of application No. 17/043,598, granted, now 11,777,070, previously published as PCT/US2019/032045, filed on May 13, 2019.
Claims priority of provisional application 62/671,012, filed on May 14, 2018.
Prior Publication US 2023/0411584 A1, Dec. 21, 2023
Int. Cl. H01M 4/04 (2006.01); H01G 11/28 (2013.01); H01G 11/42 (2013.01); H01G 11/46 (2013.01); H01G 11/50 (2013.01); H01M 4/02 (2006.01); H01M 4/1391 (2010.01); H01M 4/62 (2006.01)
CPC H01M 4/0402 (2013.01) [H01G 11/28 (2013.01); H01G 11/42 (2013.01); H01G 11/46 (2013.01); H01G 11/50 (2013.01); H01M 4/1391 (2013.01); H01M 4/623 (2013.01); H01M 2004/021 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An energy storage device, comprising:
an electrode comprising a dry electrode film in contact with a current collector, wherein the dry electrode film comprises:
about 90 wt. % to about 99 wt. % of a dry active material; and
at most 2 wt. % of a dry binder, wherein the dry electrode film is free-standing; and
wherein the energy storage device is configured to have a first cycle device efficiency of about 90% to about 94%.