US 12,347,854 B1
Silicon dominant anodes containing pyrolyzed carbon
Qing Zhang, Irvine, CA (US); Ian Browne, Irvine, CA (US); Younes Ansari, Irvine, CA (US); Benjamin Yong Park, Irvine, CA (US); and Rahul Kamath, Irvine, CA (US)
Assigned to Enevate Corporation, Irvine, CA (US)
Filed by Enevate Corporation, Irvine, CA (US)
Filed on Jun. 7, 2024, as Appl. No. 18/736,855.
Int. Cl. H01M 4/38 (2006.01); H01M 4/04 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/386 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0471 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pyrolyzed battery electrode comprising:
a pyrolyzed electrode coating layer on a current collector, the pyrolyzed electrode coating layer formed from an electrode coating layer comprising silicon, a water soluble polymer, a secondary polymer and a conductive additive;
wherein said water soluble polymer and said secondary polymer are at least partially pyrolyzed into carbon during making of the electrode, thus forming said pyrolyzed electrode coating layer; and
wherein the amount of silicon in the pyrolyzed electrode coating layer is about 95-99% by weight.