Abstract: Provided is a composition for a non-aqueous secondary battery adhesive layer containing organic particles, a thixotropic agent, and water. The organic particles have a core-shell structure including a core portion and a shell portion at least partially covering an outer surface of the core portion. The composition for a non-aqueous secondary battery adhesive layer has a viscosity ?0 at a shear rate of 100 s?1 of less than 10 mPa·s, a viscosity ?1 at a shear rate of 10,000 s?1 of not less than 0.5 mPa·s and not more than 2.4 mPa·s, and a ratio (?0/?1) of the viscosity ?0 relative to the viscosity ?1 of not less than 1.2 and not more than 10.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent heat shrinkage resistance and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The composition for a non-aqueous secondary battery functional layer contains organic particles and a solvent. The organic particles include a polyfunctional ethylenically unsaturated monomer unit in a proportion of not less than 55 mass % and not more than 90 mass %, and have a volume-average particle diameter of not less than 50 nm and not more than 370 nm.

Abstract: A slurry composition for a non-aqueous secondary battery negative electrode contains a negative electrode active material including lithium titanium oxide, a binder, and an organic solvent. The binder includes a copolymer that includes a nitrile group-containing monomer unit and at least one selected from an aliphatic conjugated diene monomer unit and an alkylene structural unit and that has a Mooney viscosity (ML1+4, 100° C.) of not less than 50 and not more than 200.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer that has excellent slurry stability and can form a functional layer for which sufficient heat shrinkage resistance is ensured. The composition for a non-aqueous secondary battery functional layer contains organic particles, a water-soluble polymer, and water. The organic particles include a polyfunctional monomer unit in a proportion of not less than 20 mass % and not more than 95 mass %, and the water-soluble polymer includes a hydroxyl group-containing structural unit in a proportion of not less than 15 mass % and not more than 100 mass %.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent heat shrinkage resistance and adhesiveness after immersion in electrolyte solution and that can cause a non-aqueous secondary battery to display excellent cycle characteristics. The composition for a functional layer contains first organic particles, second organic particles, and a solvent. The first organic particles include a polyfunctional ethylenically unsaturated monomer unit in a proportion of not less than 20 mass % and not more than 90 mass %. The second organic particles include a nitrile group-containing monomer unit in a proportion of not less than 20 mass % and not more than 80 mass % and a cross-linkable monomer unit in a proportion of not less than 0.1 mass % and not more than 10 mass %.

Abstract: A functional layer-equipped separator for an electrochemical device includes a separator substrate and a functional layer for an electrochemical device disposed on at least one surface of the separator substrate. The functional layer for an electrochemical device contains inorganic particles and a particulate polymer. A surface of the functional layer for an electrochemical device has a maximum height Sz of 2.5 ?m or more. The functional layer for an electrochemical device includes one or more protrusions each containing the particulate polymer at a surface thereof.

Abstract: Provided is a technique that enables efficient formation of a functional layer for an electrochemical device in which dusting is inhibited and that can ensure sufficient heat resistance while also displaying excellent adhesiveness. A composition for an electrochemical device functional layer contains a particulate polymer, a binder, and inorganic particles. The particulate polymer has an average circularity of not less than 0.90 and less than 0.99 and a volume-average particle diameter of not less than 1.0 ?m and not more than 10.0 ?m.

Abstract: Provided is a binder composition for a non-aqueous secondary battery porous membrane capable of forming a porous membrane having improved adhesiveness in electrolyte solution, heat shrinkage resistance in electrolyte solution, and blocking resistance. The binder composition for a non-aqueous secondary battery porous membrane contains a particulate polymer A and a particulate polymer B having a larger volume-average particle diameter than the particulate polymer A. The particulate polymer A includes a (meth)acrylic acid alkyl ester monomer unit in a proportion of not less than 50 mass % and not more than 90 mass %. The particulate polymer B has a core-shell structure and includes a nitrile group-containing monomer unit in a core portion of the core-shell structure.

Abstract: A secondary battery includes a laminate in which a positive electrode, separator, and negative electrode are stacked in stated order. The coating weight of an adhesive material at a surface Z that is an affixing surface X of the positive electrode and separator and/or an affixing surface Y of the negative electrode and separator satisfies relationship formula (1): A (g/m2)+0.02 (g/m2)<B (g/m2). In formula (1), A represents coating weight in an inner region P at surface Z and B represents coating weight in an outer region Q at surface Z. Inner region P is a region that has a center of surface Z as a center, has a similar shape to a shape of surface Z, and has an area equivalent to 80% of area of surface Z, and outer region Q is all regions other than inner region P at surface Z.

Abstract: Provided is a laminate for a secondary battery in which separator curling up is inhibited. A method of producing a laminate for a secondary battery includes: a step (A) of producing an affixed body including a negative electrode material and separator webs affixed to both surfaces of the negative electrode material or an affixed body including a negative electrode material, a first separator web, a positive electrode, and a second separator web affixed in stated order; and a step (B) of cutting the affixed body. The step (A) includes a step (a1) of applying an adhesive material at affixing surfaces of the negative electrode material and the separator webs. The adhesive material is applied in the step (a1) such that a first coated section including a region where the adhesive material is applied with a coating weight M1 and a second coated section including a region where the adhesive material is applied with a coating weight M2 (?M1+0.02 g/m2) are located alternately in a longitudinal direction.

Abstract: Provided is a composition for a non-aqueous secondary battery adhesive layer containing organic particles, a thixotropic agent, and water. The organic particles have a core-shell structure including a core portion and a shell portion at least partially covering an outer surface of the core portion. The composition for a non-aqueous secondary battery adhesive layer has a viscosity ?0 at a shear rate of 100 s?1 of less than 10 mPa·s, a viscosity ?1 at a shear rate of 10,000 s?1 of not less than 0.5 mPa·s and not more than 2.4 mPa·s, and a ratio (?0/?1) of the viscosity ?0 relative to the viscosity ?1 of not less than 1.2 and not more than 10.

Abstract: A disclosed binder composition comprises a copolymer which comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit and a basic group-containing monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer unit and the basic group-containing monomer unit in the copolymer is 0.8 mol % or more and 10.0 mol % or less.

Abstract: Provided is a slurry composition for a non-aqueous secondary battery positive electrode that has excellent stability and enables formation of a positive electrode mixed material layer that causes a non-aqueous secondary battery to display excellent output characteristics. The slurry composition contains a positive electrode active material and a copolymer. The proportion constituted by nickel among transition metal in the positive electrode active material is at least 30.0 mol % and not more than 100.0 mol %. The copolymer includes a nitrile group-containing monomer unit in a proportion of at least 70.0 mass % and not more than 96.0 mass % and a basic group-containing monomer unit in a proportion of at least 0.1 mass % and not more than 5.0 mass %.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent heat shrinkage resistance and adhesiveness after immersion in electrolyte solution and that can cause a non-aqueous secondary battery to display excellent cycle characteristics. The composition for a functional layer contains first organic particles, second organic particles, and a solvent. The first organic particles include a polyfunctional ethylenically unsaturated monomer unit in a proportion of not less than 20 mass % and not more than 90 mass %. The second organic particles include a nitrile group-containing monomer unit in a proportion of not less than 20 mass % and not more than 80 mass % and a cross-linkable monomer unit in a proportion of not less than 0.1 mass % and not more than 10 mass %.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer that has excellent slurry stability and can form a functional layer for which sufficient heat shrinkage resistance is ensured. The composition for a non-aqueous secondary battery functional layer contains organic particles, a water-soluble polymer, and water. The organic particles include a polyfunctional monomer unit in a proportion of not less than 20 mass % and not more than 95 mass %, and the water-soluble polymer includes a hydroxyl group-containing structural unit in a proportion of not less than 15 mass % and not more than 100 mass %.

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that has excellent heat shrinkage resistance and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The composition for a non-aqueous secondary battery functional layer contains organic particles and a solvent. The organic particles include a polyfunctional ethylenically unsaturated monomer unit in a proportion of not less than 55 mass % and not more than 90 mass %, and have a volume-average particle diameter of not less than 50 nm and not more than 370 nm.

Abstract: Provided is a binder composition for a non-aqueous secondary battery porous membrane capable of forming a porous membrane having improved adhesiveness in electrolyte solution, heat shrinkage resistance in electrolyte solution, and blocking resistance. The binder composition for a non-aqueous secondary battery porous membrane contains a particulate polymer A and a particulate polymer B having a larger volume-average particle diameter than the particulate polymer A. The particulate polymer A includes a (meth)acrylic acid alkyl ester monomer unit in a proportion of not less than 50 mass % and not more than 90 mass %. The particulate polymer B has a core-shell structure and includes a nitrile group-containing monomer unit in a core portion of the core-shell structure.

Abstract: A slurry composition for a non-aqueous secondary battery negative electrode contains a negative electrode active material including lithium titanium oxide, a binder, and an organic solvent. The binder includes a copolymer that includes a nitrile group-containing monomer unit and at least one selected from an aliphatic conjugated diene monomer unit and an alkylene structural unit and that has a Mooney viscosity (ML1+4, 100° C.) of not less than 50 and not more than 200.

Abstract: Provided is a slurry composition for a non-aqueous secondary battery positive electrode that has excellent stability and enables formation of a positive electrode mixed material layer that causes a non-aqueous secondary battery to display excellent output characteristics. The slurry composition contains a positive electrode active material and a copolymer. The proportion constituted by nickel among transition metal in the positive electrode active material is at least 30.0 mol % and not more than 100.0 mol %. The copolymer includes a nitrile group-containing monomer unit in a proportion of at least 70.0 mass % and not more than 96.0 mass % and a basic group-containing monomer unit in a proportion of at least 0.1 mass % and not more than 5.0 mass %.

Abstract: A disclosed binder composition comprises a copolymer which comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit and a basic group-containing monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer unit and the basic group-containing monomer unit in the copolymer is 0.8 mol % or more and 10.0 mol % or less.