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US 2023/0275232 A1Published application
Binder for silicon-based anode material
AssigneeSolvay Specialty Polymers Italy S.P.A.
InventorsMaurizio Biso, Libero Damen, William R. Tilford
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Abstract
The present invention generally relates to blends of poly acrylic acid (PAA) and polyacrylamide (PAM) and their use as binders in negative electrodes for lithium ion batteries.
Claims14
An aqueous electrode-forming composition [composition (C)] for use in the preparation of electrodes for electrochemical devices, characterized by comprising:
- a) a binder composition [binder (B)] comprising:
- ai) at least one polyacrylamide (PAM) having a number average molecular weight (Mn) of at most 1600000 g/mol and
- aii) at least one polyacrylic acid metal salt (PAA-Salt),
- b) an electrode active material,
- c) an aqueous solvent, and
- d) optionally at least one electroconductivity-imparting additive.
3 more elements
Dependencies are inferred from the claim text.