METHOD FOR MANUFACTURING SEPARATOR, SEPARATOR MANUFACTURED THEREFROM, AND ELECTROCHEMICAL ELEMENT COMPRISING SAME

摘要

A method for manufacturing a separator according to the present invention comprises the steps of: preparing an aqueous slurry including inorganic particles, a binder polymer, and an aqueous material; and coating the aqueous slurry on at least one surface of a porous polymer substrate to form an organic-inorganic composite porous coating layer, wherein the capillary number of the aqueous slurry is in the range of 0.3 to 65.