SEPARATOR FOR SECONDARY BATTERY WITH EXCELLENT ELECTROLYTE WETTING PROPERTY

The present invention is a separator for a secondary battery having a coating layer formed on a separator substrate, wherein the coating layer is formed on at least one surface of the separator substrate, the coating layer comprises an acrylate-based binder and an additive, and the additive is a fluorine-based non-ionic surfactant, and provides a separator for a secondary battery with significantly improved electrolyte impregnation rate.