Abstract: Proposed is a copolymer composition including a copolymer and a cross-linking agent, in which the copolymer includes 30% or more to 80% or less by weight of at least one type of monomer units selected from the group consisting of acrylate-based monomer units, acrylonitrile-based monomer units, vinylamide-based monomer units, and acrylamide-based monomer units and 20% or more to 70% or less by weight of vinylpyrrolidone monomer units, based on 100% by weight of the copolymer. In addition, a slurry composition, a separator, and a secondary battery that contains the polymer composition are proposed.

Abstract: A binder for coating a secondary battery separator, a secondary battery separator including the binder, and a secondary battery including the binder are disclosed. The binder contains a mixture of copolymer A derived from a (meth)acrylamide-based monomer, N-vinylpyrrolidone, and a (meth)acrylic acid monomer and containing a carboxyl functional group, and copolymer B derived from a (meth)acrylamide-based monomer, N-vinylpyrrolidone, and a (meth)acrylate-based monomer and containing an alcohol functional group.

Abstract: The present invention relates to a copolymer, a slurry composition using same, a separator, and a secondary battery, the copolymer comprising, relative to 100 weight % of the total weight of the copolymer: 3 weight % to 38 weight % of vinyl acetate-based monomer unit; 57 weight % to 81 weight % of vinyl alcohol-based monomer unit; 0.7 weight % to 18 weight % of acrylate-based monomer unit; 14 weight % to 38 weight % of acrylic acid-based monomer unit; and less than 1 weight % of amine organic compound.

Abstract: The present invention relates to a copolymer and core-shell particles, a slurry composition, a separator and a secondary battery which comprise the copolymer, the copolymer comprising, with respect to 100 wt % of the total weight of the copolymer, greater than 5 wt % and less than or equal to 70 wt % of an acrylonitrile-based monomer unit, greater than or equal to 15 wt % and less than 90 wt % of an acrylate-based monomer unit, 1-20 wt % of an acrylamide-based monomer unit, and 1-10 wt % of an acrylic acid-based monomer unit.

Abstract: The present disclosure relates to an anode slurry composition for secondary batteries, comprising an anode active material; and a binder including a copolymer of (meth)acrylic acid monomer, acrylonitrile-based monomer, and (meth)acrylamide monomer, wherein a value obtained by dividing an absolute value of a zeta potential of the binder by an oxygen content per specific surface area of the anode active material is in a range from 0.6×10?5 mV·m2/g to 2.0×10?5 mV·m2/g.

Abstract: The present disclosure relates to a copolymer, which contains: an acrylonitrile-based monomer unit in an amount in a range of greater than 0 wt % and 15 wt % or less; a hydroxyl group (—OH)-containing acrylate-based monomer unit in an amount in a range of greater than 0 wt % and 5 wt % or less; an acrylamide-based monomer unit in an amount in a range of greater than 80 wt % and less than 95 wt %; and an acrylic acid-based monomer unit in an amount in a range of greater than 0 wt % and 15 wt % or less, based on the total weight of the copolymer in an amount of 100 wt %, to a slurry composition containing the copolymer, to a separator, and to a secondary battery.

Abstract: The present disclosure relates to a binder for coating a secondary battery separator including a (meth)acrylic copolymer containing a first structural unit derived from (meth)acrylonitrile; a second structural unit derived from (meth)acrylic acid or (meth)acrylate; and a third structural unit derived from (acet)amides, and a separator for a secondary battery and a secondary battery including the same.