Separator for Electrochemical Device, Method for Manufacturing Same, and Electrochemical Device Comprising Same

A separator for an electrochemical device is provided. The separator includes a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes inorganic particles, a first polyvinylidene fluoride copolymer and a second polyvinylidene fluoride copolymer. A method for manufacturing the separator, and an electrochemical device including the same are also provided. It is possible to provide a separator with excellent adhesion between the porous polymer substrate and the porous coating layer and excellent adhesion to an electrode, and an electrochemical device including the same.