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US 2026/0031355 A1Published application
Anode composition containing anionic binder
AssigneeCoatex
InventorsBenoît MAGNY, Guillaume MICHAUD, Jean-Marc SUAU
Life of this patent
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Abstract
An aqueous anode composition including metal particles or fibres or carbon graphite particles or fibres, and a binding agent including at least one water-soluble polymer P prepared on the basis of (meth)acrylic acid and (meth)acrylate. A method for producing an anode including said aqueous composition.
Claims20
An aqueous anode composition T, comprising:
- 0.5% to 15% by dry weight of a binding agent L comprising a water-soluble polymer P, with a weight-average molecular mass Mw, measured by SEC, of 2,000 g/mol to 1,000,000 g/mol, prepared in the presence of an initiator compound, by a polymerisation reaction of 20 to 95% by weight of at least one anionic monomer (a) selected from the group consisting of an acrylic acid, an acrylic acid salt, a methacrylic acid, a methacrylic acid salt, and combinations thereof or 5 to 80% by weight of a C1-C8 ester (b) of a compound derived from an acid selected from the group consisting of an acrylic acid, a methacrylic acid, a maleic acid, an itaconic acid, and a crotonic acid, relative to a total amount by weight of the anionic monomer (a) and the C1-C8 ester (b);
- and
- 85% to 99.5% by dry weight of a material E comprising at least one selected from the group consisting of a metal fiber, a metal particle, a carbon graphite fiber, a carbon graphite particle, and a silicon particle relative to a total amount by dry weight of the binding agent L and of the material E.
Dependencies are inferred from the claim text.