US 12,406,996 B2
Composite material with conformal graphene coating, fabricating methods and applications of same
Mark C. Hersam, Wilmette, IL (US); Norman S. Luu, Chicago, IL (US); and Jin-Myoung Lim, Coppell, TX (US)
Assigned to NORTHWESTERN UNIVERSITY, Evanston, IL (US)
Filed by NORTHWESTERN UNIVERSITY, Evanston, IL (US)
Filed on Apr. 5, 2022, as Appl. No. 17/713,373.
Claims priority of provisional application 63/180,301, filed on Apr. 27, 2021.
Prior Publication US 2022/0344665 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 4/02 (2006.01); H01M 10/0525 (2010.01); H01M 10/054 (2010.01)
CPC H01M 4/625 (2013.01) [H01M 4/364 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 4/622 (2013.01); H01M 2004/028 (2013.01); H01M 10/0525 (2013.01); H01M 10/054 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A method for fabricating a composite material, comprising:
forming a mixture containing an active material, graphene, ethyl cellulose (EC) polymer and multiwalled carbon nanotubes (MWCNTs); and
thermally annealing the mixture at an annealing temperature in an oxidizing environment to decompose the majority of EC, thereby resulting in the composite material having each active material particle coated with a conformal graphene coating.