US 11,791,455 B2
Battery electrode composition comprising carbon and silicon with specific properties for superior performance
Gleb Yushin, Atlanta, GA (US); Matthew Clark, Oakland, CA (US); Adam Kajdos, Stockton, CA (US); Timothy Milakovich, San Francisco, CA (US); Saujan Sivaram, Castro Valley, CA (US); and Valentin Lulevich, Stockton, CA (US)
Assigned to SILA NANOTECHNOLOGIES, INC., Alameda, CA (US)
Filed by Sila Nanotechnologies, Inc., Alameda, CA (US)
Filed on Jan. 12, 2023, as Appl. No. 18/153,800.
Application 18/153,800 is a continuation of application No. 17/930,366, filed on Sep. 7, 2022.
Claims priority of provisional application 63/241,407, filed on Sep. 7, 2021.
Prior Publication US 2023/0170466 A1, Jun. 1, 2023
Int. Cl. H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/362 (2013.01) [H01M 4/386 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A lithium-ion battery anode composition, comprising:
a porous composite particle comprising carbon (C) and an active material comprising silicon (Si),
wherein the carbon is characterized by a domain size (r), as estimated from an atomic pair distribution function G(r) obtained from a synchrotron x-ray diffraction measurement of the porous composite particle, ranging from around 10 Å (1 nm) to around 60 Å (6 nm).