| abstract |
It includes a porous substrate and a coating layer located on at least one surface of the porous substrate, the coating layer is a first structural unit derived from (meth)acrylamide, and a second structural unit derived from (meth)acrylonitrile, and ( A binder comprising a (meth)acrylic copolymer comprising a third structural unit derived from meta)acrylamidosulfonic acid, (meth)acrylamidosulfonic acid salt, or a combination thereof; First inorganic particles; And a second inorganic particle, wherein the average particle diameter of the first inorganic particles is 400 to 600 nm, and the average particle diameter of the second inorganic particles is smaller than the average particle diameter of the first inorganic particles, and the separator for a lithium secondary battery and It relates to a lithium secondary battery including this. |