Abstract: Disclosed is a composition for non-aqueous secondary battery functional layer which comprises non-conductive particles; a water-soluble polymer having a degree of swelling in electrolyte solution of greater than 1.0 time and 2.0 times or less; and a water-insoluble polymer having a volume-average particle diameter of 0.01 ?m or more and 0.30 ?m or less.

Abstract: To provide a technique of trapping transition metal ions such as cobalt ions dissolved from positive electrode active material in a secondary battery to prevent deposition of transition metal on the negative electrode. Disclosed is a composition for non-aqueous secondary battery functional layer which contains organic particles containing an aliphatic conjugated diene monomer unit at an amount of 5% by mass or more based on the total monomer units in the organic particles, wherein the composition comprises the organic particles at an amount of 50% by mass or more in terms of solid content.

Abstract: A composition for a non-aqueous secondary battery functional layer comprises: non-conductive particles; a water-soluble polymer containing a (meth)acrylamide monomer unit in a proportion of 70.0 mass % or more and 99.0 mass % or less; and a water-insoluble polymer containing an ethylenically unsaturated carboxylic acid monomer unit in a proportion of 1.5 mass % or more and 5.0 mass % or less and having a degree of swelling in electrolyte solution of more than 1.0 time and 3.0 times or less.

Abstract: Provided is a binder composition for a non-aqueous secondary battery that enables formation of a functional layer and an electrode mixed material layer having high transition metal capturing ability. The binder composition for a non-aqueous secondary battery contains a water-soluble polymer and water. The water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion of at least 10 mass % and not more than 50 mass % and a (meth)acrylonitrile monomer unit in a proportion of 20 mass % or more.

Abstract: A composition for a non-aqueous secondary battery functional layer contains a binder and inorganic particles including a sulfonate group. A non-aqueous secondary battery includes a functional layer for a non-aqueous secondary battery that is formed using this composition for a non-aqueous secondary battery functional layer.

Abstract: Disclosed is a composition for non-aqueous secondary battery functional layer which comprises non-conductive particles; a water-soluble polymer having a degree of swelling in electrolyte solution of greater than 1.0 time and 2.0 times or less; and a water-insoluble polymer having a volume-average particle diameter of 0.01 ?m or more and 0.30 ?m or less.

Abstract: A composition for a non-aqueous secondary battery functional layer comprises: non-conductive particles; a water-soluble polymer containing a (meth)acrylamide monomer unit in a proportion of 70.0 mass % or more and 99.0 mass % or less; and a water-insoluble polymer containing an ethylenically unsaturated carboxylic acid monomer unit in a proportion of 1.5 mass % or more and 5.0 mass % or less and having a degree of swelling in electrolyte solution of more than 1.0 time and 3.0 times or less.

Abstract: Provided is a means for beneficially solving the problems of increasing separator productivity and further improving adhesion between an electrode and a separator in electrolysis solution while ensuring battery characteristics. A composition for non-aqueous secondary battery functional layer is provided that contains non-conductive inorganic particles and organic particles, wherein a difference in density between the non-conductive inorganic particles and the organic particles (non-conductive inorganic particles' density—organic particles' density) is 1.5 g/cm3 or more, and the organic particles each have a core-shell structure having a core and a shell that partially covers an outer surface of the core, wherein the core is made of polymer having a degree of swelling in electrolysis solution of 5 times to 30 times, and the shell is made of polymer having a degree of swelling in electrolysis solution of greater than 1 time to 4 times.

Abstract: A composition for a non-aqueous secondary battery functional layer contains a binder and inorganic particles including a sulfonate group. A non-aqueous secondary battery includes a functional layer for a non-aqueous secondary battery that is formed using this composition for a non-aqueous secondary battery functional layer.

Abstract: Provided is a binder composition for a non-aqueous secondary battery that enables formation of a functional layer and an electrode mixed material layer having high transition metal capturing ability. The binder composition for a non-aqueous secondary battery contains a water-soluble polymer and water. The water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion of at least 10 mass % and not more than 50 mass % and a (meth)acrylonitrile monomer unit in a proportion of 20 mass % or more.

Abstract: Provided is a technique for capturing transition metal ions, such as cobalt ions, in a secondary battery that elute from a positive electrode active material and for preventing deposition of transition metal at a negative electrode. A composition for a lithium ion secondary battery porous membrane that contains non-conductive particles and a binding material is provided. The binding material includes a polymer A including an aliphatic conjugated diene monomer unit in a proportion of greater than 85 mass % and a polymer B including a (meth)acrylic acid ester monomer unit in a proportion of at least 60 mass %. A mass basis ratio of content of the polymer A relative to content of the polymer B is at least 0.2 and no greater than 9.0.

Abstract: To provide a technique of trapping transition metal ions such as cobalt ions dissolved from positive electrode active material in a secondary battery to prevent deposition of transition metal on the negative electrode. Disclosed is a composition for non-aqueous secondary battery functional layer which contains organic particles containing an aliphatic conjugated diene monomer unit at an amount of 5% by mass or more based on the total monomer units in the organic particles, wherein the composition comprises the organic particles at an amount of 50% by mass or more in terms of solid content.

Abstract: A composition for a porous membrane of a secondary battery including a non-conductive particle and a water-soluble polymer, wherein the water-soluble polymer contains 80% by weight or more of a (meth)acrylamide monomer unit, and the water-soluble polymer has a storage modulus at 150° C. of 2.0×105 Pa or more; and a porous membrane manufactured therefrom and a secondary battery including the same.

Abstract: Provided is a technique for capturing transition metal ions, such as cobalt ions, in a secondary battery that elute from a positive electrode active material and for preventing deposition of transition metal at a negative electrode. A composition for a lithium ion secondary battery porous membrane that contains non-conductive particles and a binding material is provided. The binding material includes a polymer A including an aliphatic conjugated diene monomer unit in a proportion of greater than 85 mass % and a polymer B including a (meth)acrylic acid ester monomer unit in a proportion of at least 60 mass %. A mass basis ratio of content of the polymer A relative to content of the polymer B is at least 0.2 and no greater than 9.0.

Abstract: Provided is a means for beneficially solving the problems of increasing separator productivity and further improving adhesion between an electrode and a separator in electrolysis solution while ensuring battery characteristics. A composition for non-aqueous secondary battery functional layer is provided that contains non-conductive inorganic particles and organic particles, wherein a difference in density between the non-conductive inorganic particles and the organic particles (non-conductive inorganic particles' density—organic particles' density) is 1.5 g/cm3 or more, and the organic particles each have a core-shell structure having a core and a shell that partially covers an outer surface of the core, wherein the core is made of polymer having a degree of swelling in electrolysis solution of 5 times to 30 times, and the shell is made of polymer having a degree of swelling in electrolysis solution of greater than 1 time to 4 times.

Abstract: A composition for a porous membrane of a secondary battery including a non-conductive particle and a water-soluble polymer, wherein the water-soluble polymer contains 80% by weight or more of a (meth)acrylamide monomer unit, and the water-soluble polymer has a storage modulus at 150° C. of 2.0×105 Pa or more; and a porous membrane manufactured therefrom and a secondary battery including the same.