US 11,695,106 B2
Lower pyrolysis temperature binder for silicon-dominant anodes
Monika Chhorng, Irvine, CA (US); David J. Lee, Irvine, CA (US); and Rahul Kamath, Mission Viejo, CA (US)
Assigned to ENEVATE CORPORATION, Irvine, CA (US)
Filed by Enevate Corporation, Irvine, CA (US)
Filed on Apr. 4, 2022, as Appl. No. 17/712,840.
Application 16/745,404 is a division of application No. 16/681,401, filed on Nov. 12, 2019, granted, now 11,450,841.
Application 17/712,840 is a continuation of application No. 16/745,404, filed on Jan. 17, 2020, granted, now 11,296,311.
Prior Publication US 2022/0231271 A1, Jul. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 4/1395 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/0471 (2013.01) [H01M 4/0404 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/386 (2013.01); H01M 4/621 (2013.01); H01M 4/625 (2013.01); H01M 2004/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of forming an anode of a battery, the method comprising:
mixing a composition comprising a silicon-based active material, a carbon-based binder, and a carbon-based additive, wherein onset of pyrolysis of the composition starts at an onset pyrolysis temperature;
coating a conductive foil with the composition; and
subjecting the coated conductive foil to a pyrolysis process at a temperature less than 600° C. and greater than the onset pyrolysis temperature of the composition, wherein the pyrolysis process pyrolyzes the composition coated on the conductive foil resulting in the anode comprising the conductive foil and an active material layer of the pyrolyzed composition on the conductive foil.