SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to a separator for a lithium secondary battery, and a lithium secondary battery comprising same. The separator comprises a porous substrate and a coating layer placed on at least one surface of the porous substrate, wherein the coating layer includes: a heat-resistant binder comprising a (meth)acrylic copolymer which bears a first structural unit derived from (meth)acrylamide, and a second structural unit including at least one of a structural unit derived from (meth)acrylic acid or (meth)acrylate and a structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof; an adhesive binder having a core-shell structure; and inorganic particles, wherein the average particle diameter of the adhesive binder is 0.2 to 1.0um, and the average particle diameter of the inorganic particles is 0.2 to 1.0um. 本发明涉及用于锂二次电池的隔板和包括其的锂二次电池。隔板包括多孔基板，以及放置在多孔基板的至少一个表面上的涂层，其中涂层包括：包含(甲基)丙烯酸共聚物的耐热粘结剂，(甲基)丙烯酸共聚物具有衍生自(甲基)丙烯酰胺的第一结构单元，以及包括衍生自(甲基)丙烯酸或(甲基)丙烯酸酯的结构单元和衍生自(甲基)丙烯酰胺基磺酸或其盐的结构单元中的至少一种的第二结构单