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 pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor. The electrode coating layer may include a pyrolyzed water-based acidic polymer solution additive. The polymer solution additive may include one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble polyacrylic acid. The electrode coating layer may include conductive additives. The current collector may include a metal foil, where the metal current collector includes one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. 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 formed from silicon microparticles and a pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor; and
wherein the electrode coating layer further comprises a basic amine and said basic amine is butyldiethanolamine or triethanolamine.
2 . The electrode according to claim 1 , wherein the electrode coating layer further comprises one or more conductive additives.
3 . The electrode according to claim 1 , wherein said current collector comprises one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer.
4 . The electrode according to claim 1 , wherein the electrode coating layer comprises more than 70% silicon.
5 . The electrode according to claim 1 , wherein the electrode is in electrical and physical contact with an electrolyte.
6 . The electrode according to claim 5 , wherein the electrolyte comprises a liquid, solid, or gel.
7 . A battery electrode, the electrode comprising:
an electrode coating layer on a current collector, the electrode coating layer formed from silicon microparticles and a pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor; and
wherein the electrode coating layer further comprises a basic amine; and wherein the electrode coating layer further comprises a pyrolyzed water-based acidic polymer solution additive.
8 . The electrode according to claim 7 , 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.
9 . The electrode according to claim 7 , wherein the electrode coating layer further comprises one or more conductive additives.
10 . The electrode according to claim 7 , wherein said current collector comprises one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer.
11 . The electrode according to claim 7 , wherein the electrode coating layer comprises more than 70% silicon.
12 . The electrode according to claim 7 , wherein the electrode is in electrical and physical contact with an electrolyte.
13 . The electrode according to claim 12 , wherein the electrolyte comprises a liquid, solid, or gel.
14 . 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 microparticles and a pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor;
wherein the electrode coating layer further comprises a basic amine and said basic amine is butyldiethanolamine or triethanolamine.
15 . The method according to claim 14 , wherein the electrode coating layer further comprises conductive additives.
16 . The method according to claim 14 , wherein said current collector comprises one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer.
17 . The method according to claim 14 , wherein the electrode coating layer comprises more than 70% silicon.
18 . The method according to claim 14 , wherein the electrode is in electrical and physical contact with an electrolyte and the electrolyte comprises a liquid, solid, or gel.
19 . 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 microparticles and a pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor;
wherein the electrode coating layer further comprises a basic amine; and wherein the electrode coating layer further comprises a pyrolyzed water-based acidic polymer solution additive.
20 . The method according to claim 19 , 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.
21 . The method according to claim 19 , wherein wherein the electrode coating layer further comprises conductive additives.
22 . The method according to claim 19 , wherein said current collector comprises one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer.
23 . The method according to claim 19 , wherein the electrode coating layer comprises more than 70% silicon.
24 . The method according to claim 19 , wherein the electrode is in electrical and physical contact with an electrolyte and the electrolyte comprises a liquid, solid, or gel.