US 11,855,280 B2
Nanocomposite battery electrode particles with changing properties
Gleb Yushin, Atlanta, GA (US); Eugene Michael Berdichevsky, Alameda, CA (US); Alexander Thomas Jacobs, Atlanta, GA (US); Alper Nese, Alameda, CA (US); Damian Harris, San Francisco, CA (US); and Bogdan Zdyrko, Atlanta, GA (US)
Assigned to SILA NANOTECHNOLOGIES, INC., Alameda, CA (US)
Filed by Sila Nanotechnologies, Inc., Alameda, CA (US)
Filed on Jan. 13, 2023, as Appl. No. 18/154,368.
Application 18/154,368 is a continuation of application No. 17/454,962, filed on Nov. 15, 2021, granted, now 11,575,129.
Application 17/454,962 is a continuation of application No. 16/457,701, filed on Jun. 28, 2019, granted, now 11,233,235, issued on Jan. 25, 2022.
Application 16/457,701 is a continuation of application No. 14/882,166, filed on Oct. 13, 2015, granted, now 10,340,520, issued on Jul. 2, 2019.
Claims priority of provisional application 62/063,493, filed on Oct. 14, 2014.
Prior Publication US 2023/0163286 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/38 (2006.01); H01M 4/13 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01)
CPC H01M 4/388 (2013.01) [H01M 4/13 (2013.01); H01M 4/362 (2013.01); H01M 4/386 (2013.01); H01M 4/625 (2013.01); H01M 4/0402 (2013.01); H01M 10/0525 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A Li-ion battery anode composition, comprising:
a composite particle, comprising:
a high-capacity active material capable of storing and releasing Li ions during battery operation, the high-capacity active material exhibiting a specific capacity of at least about 400 mAh/g; and
a porous, electrically conductive scaffolding matrix material, the high-capacity active material being disposed in one or more pores thereof; and
wherein:
the composite particle includes a first region from the center to a first radius that is halfway to a perimeter of the scaffolding matrix material and a second region from the first radius to a second radius at the perimeter the scaffolding matrix material;
the high-capacity active material is more highly concentrated in the first region than in the second region.