US 11,718,701 B2
Preparation of polymeric resins and carbon materials
Katharine Geramita, Seattle, WA (US); Benjamin Kron, Seattle, WA (US); Henry R. Costantino, Woodinville, WA (US); Aaron M. Feaver, Seattle, WA (US); Avery J. Sakshaug, Everett, WA (US); Leah A. Thompkins, Seattle, WA (US); and Alan Tzu-Yang Chang, Renton, WA (US)
Assigned to GROUP14 TECHNOLOGIES, INC., Woodinville, WA (US)
Filed by Group14 Technologies, Inc., Woodinville, WA (US)
Filed on Jul. 7, 2022, as Appl. No. 17/860,011.
Application 17/860,011 is a continuation of application No. 15/199,318, filed on Jun. 30, 2016, granted, now 11,401,363.
Application 15/199,318 is a continuation of application No. 13/763,448, filed on Feb. 8, 2013, granted, now 9,409,777, issued on Aug. 9, 2016.
Claims priority of provisional application 61/597,121, filed on Feb. 9, 2012.
Prior Publication US 2023/0016325 A1, Jan. 19, 2023
Int. Cl. C01B 32/336 (2017.01); C08G 8/22 (2006.01); H01G 11/34 (2013.01); H01G 11/44 (2013.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); C01B 32/05 (2017.01); H01M 4/133 (2010.01); H01M 4/14 (2006.01); H01M 4/36 (2006.01); H01M 4/96 (2006.01); H01M 10/054 (2010.01); H01M 12/08 (2006.01); H01M 4/62 (2006.01); H01M 10/06 (2006.01); H01M 12/06 (2006.01)
CPC C08G 8/22 (2013.01) [C01B 32/05 (2017.08); C01B 32/336 (2017.08); H01G 11/34 (2013.01); H01G 11/44 (2013.01); H01M 4/133 (2013.01); H01M 4/14 (2013.01); H01M 4/36 (2013.01); H01M 4/587 (2013.01); H01M 4/96 (2013.01); H01M 10/054 (2013.01); H01M 10/0525 (2013.01); H01M 12/08 (2013.01); H01M 4/625 (2013.01); H01M 10/06 (2013.01); H01M 12/06 (2013.01); Y02E 60/13 (2013.01)] 22 Claims
 
1. A high purity electrode material comprising a plurality silicon-carbon composite particles, wherein the silicon-carbon composite particles comprise:
(i) a carbon particle having micropores;
(ii) a first electrochemical modifier comprising silicon, wherein the silicon is disposed within the pores of the carbon particle; and
(iii) a second electrochemical modifier comprising carbon, wherein the carbon is disposed on the surface of the carbon particle,
and wherein:
the carbon particle has mean particle diameter of less than 1 mm;
the carbon particle has a specific surface area of at least 400 m2/g; and
the carbon particle has less than 500 ppm of all atoms having a molecular weight between 11 and 92, as measured by photon induced x-ray emissions.