COATED SEPARATOR FOR SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SAME

Disclosed herein is a coated separator for a secondary battery comprising a separator substrate including a porous polymer resin; and a coating layer coated on at least one surface of the separator substrate, wherein the coating layer comprises an inorganic material and a coupling agent, the inorganic material is a hydroxide of a metal, or a hydroxide of a metal oxide, and the coupling agent is a titanium (titanate)-based or a silane-based coupling agent.