US 12,113,200 B2
Method and system for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes
Younes Ansari, Irvine, CA (US); Liwen Ji, Irvine, CA (US); and Benjamin Park, Irvine, CA (US)
Assigned to Enevate Corporation, Irvine, CA (US)
Filed by Enevate Corporation, Irvine, CA (US)
Filed on May 27, 2021, as Appl. No. 17/332,689.
Application 17/332,689 is a continuation in part of application No. 17/067,503, filed on Oct. 9, 2020, granted, now 11,233,230.
Application 17/067,503 is a continuation in part of application No. 16/896,872, filed on Jun. 9, 2020, granted, now 11,056,686.
Prior Publication US 2021/0384487 A1, Dec. 9, 2021
Int. Cl. H01M 4/133 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 4/133 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0471 (2013.01); H01M 4/134 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of forming an electrode, the method comprising:
fabricating a battery electrode comprising an electrode coating layer on a current collector, the electrode coating layer formed from silicon and a primary resin carbon precursor; wherein said primary resin carbon precursor comprises a water-soluble acidic polyamide imide functionalized with acidic groups and one or more polymeric stabilizing additives; and wherein the electrode coating layer also comprises one or more bases; and
wherein the one or more polymeric stabilizing additives comprises one or more of polyacrylic acid (PAA); poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid); water soluble PAA: polyimide; ammonium lignosulfonate; kraft lignin; dextran; pullulan (polysaccharide polymer); phenolic resins; formaldehyde based resins; melamine-formaldehyde based resins; silane based resins; polyurethane; acrylic emulsions; chitosan; polymethyl methacrylate; poly(methacrylic acid); poly(vinyl acetate)/poly(vinyl alcohol) complexes: water-based acrylic and stryrene-acrylic emulsion polymers; carboxylated styrene-butadiene binders; acrylic resin; rotaxane; poly(acrylic acid); cellulose; starch; polysacharides; glycogen; carbohydrates; and polymers with backbones comprising sucrose, glucose, sucralose, xylitol, sorbitol, sucralose, glucosidases, galactose, and maltose.