US 11,876,230 B2
Dry energy storage device electrode and methods of making the same
Hieu Minh Duong, San Diego, CA (US); Haim Feigenbaum, Irvine, CA (US); and Jian Hong, San Diego, CA (US)
Assigned to Tesla, Inc., Austin, TX (US)
Filed by Tesla, Inc., Austin, TX (US)
Filed on Jul. 27, 2020, as Appl. No. 16/939,616.
Application 16/939,616 is a division of application No. 14/690,153, filed on Apr. 17, 2015, granted, now 10,741,843.
Claims priority of provisional application 61/981,602, filed on Apr. 18, 2014.
Prior Publication US 2020/0358100 A1, Nov. 12, 2020
Int. Cl. H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 10/0525 (2010.01); H01G 9/042 (2006.01); H01G 9/15 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/1393 (2010.01); H01M 4/587 (2010.01)
CPC H01M 4/623 (2013.01) [H01G 9/0425 (2013.01); H01G 9/15 (2013.01); H01M 4/0435 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/587 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of fabricating an anode of an energy storage device, comprising:
combining an active material and at least one component of a composite binder material to form a first mixture, wherein the at least one component comprises at least one of polyvinylidene fluoride (PVDF), a PVDF co-polymer, and poly(ethylene oxide) (PEO);
adding PTFE to the first mixture to form a second mixture; and
subjecting the second mixture to a process to form an electrode film mixture,
wherein subjecting the second mixture to the process comprises fibrillizing the PTFE.