PREPARATION METHOD OF SEPARATOR, SEPARATOR FORMED THEREFROM, AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME

摘要

A method for manufacturing a separator of the present invention includes the steps of: preparing aqueous slurry including inorganic particles, binder polymers, and an aqueous medium; and forming an organic-inorganic composite porous coating layer by applying the aqueous slurry to at least one side of a porous polymer base material. The capillary number of the aqueous slurry is within a range of 0.3-65.