METHOD AND SYSTEM FOR WATER SOLUBLE WEAK ACIDIC RESINS AS CARBON PRECURSORS FOR SILICON-DOMINANT ANODES
Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and a primary resin carbon precursor; wherein the primary resin carbon precursor comprises a water-soluble acidic polyamide imide functionalized with acidic groups and one or more polymeric stabilizing additives. The electrode coating layer may also include a base and/or a surfactant. The electrode coating layer may be more than 70% silicon.
1 . A battery electrode, the electrode comprising:
an electrode coating layer on a current collector, the electrode coating layer comprising silicon and a water-soluble polyamide imide (PAI) functionalized with acidic functional groups as a primary resin carbon precursor;
wherein the acidic functional groups used to functionalize said PAI comprise one or more of Amic acid, Butane tetracarboxylic acid (BTC), Tetracarboxylic acid (TC), Carboxylic acid, Licanic acid, Methacrylic acid, Acetic acid, Aminomethanesulfonic acid, Anthranilic acid, Benzenesulfonic acid, Benzoic acid, Camphor-10-sulfonic acid, Citric acid, Folic acid, Formic acid, Fumaric acid, Gallic acids, Lactic acid, Maleic acid, Malonic acid, Methanesulfonic acid, Nitrilotriacetic acid, Oxalic acid, Peracetic acid, Phthalic acid, Propionic acid, Salicylic acid, Sorbic acid, Succinic acid, Sulfamic acid, Sulfanilic acid, Tannic acid, Thioacetic c acid, Trifluoromethanesulfonic acid, Acrylic acids, Aminophenylboronic acid, and Fuconic acid.
2 . The electrode according to claim 1 , wherein the electrode coating layer further comprises a water-based acidic polymer solution additive.
3 . The electrode according to claim 2 , wherein the polymer solution additive comprises one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble PAA.
4 . The electrode according to claim 1 , wherein the electrode coating layer comprises conductive additives.
5 . The electrode according to claim 1 , wherein the current collector comprises a metal foil.
6 . The electrode according to claim 5 , wherein the metal current collector comprises one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer.
7 . The electrode according to claim 1 , wherein the electrode is in electrical and physical contact with an electrolyte.
8 . The electrode according to claim 7 , wherein the electrolyte comprises a liquid, solid, or gel.
9 . The electrode according to claim 1 , wherein the battery electrode is in a lithium ion battery.
10 . A battery, the battery comprising:
a cathode, a separator, an electrolyte, and an anode, the anode comprising an electrode coating layer on a current collector, the electrode coating layer comprising silicon and a water-soluble polyamide imide (PAI) functionalized with acidic functional groups as a primary resin carbon precursor;
wherein the acidic functional groups used to functionalize said PAI comprise one or more of Amic acid, Butane tetracarboxylic acid (BTC), Tetracarboxylic acid (TC), Carboxylic acid, Licanic acid, Methacrylic acid, Acetic acid, Aminomethanesulfonic acid, Anthranilic acid, Benzenesulfonic acid, Benzoic acid, Camphor-10-sulfonic acid, Citric acid, Folic acid, Formic acid, Fumaric acid, Gallic acids, Lactic acid, Maleic acid, Malonic acid, Methanesulfonic acid, Nitrilotriacetic acid, Oxalic acid, Peracetic acid, Phthalic acid, Propionic acid, Salicylic acid, Sorbic acid, Succinic acid, Sulfamic acid, Sulfanilic acid, Tannic acid, Thioacetic acid, Trifluoromethanesulfonic acid, Acrylic acids, Aminophenylboronic acid, and Fuconic acid.
11 . The battery according to claim 10 , wherein the electrode coating layer further comprises a water-based acidic polymer solution additive.
12 . The battery according to claim 11 , wherein the polymer solution additive comprises one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble PAA.
13 . The battery according to claim 10 , wherein the electrode coating layer comprises conductive additives.
14 . The battery according to claim 10 , wherein the current collector comprises a metal foil.
15 . The battery according to claim 14 , wherein the metal current collector comprises one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer.
16 . The battery according to claim 10 , wherein the electrode is in electrical and physical contact with an electrolyte.
17 . The battery according to claim 16 , wherein the electrolyte comprises a liquid, solid, or gel.