电化学装置用分离器与电化学装置;SEPARATOR FOR ELECTROCHEMICAL DEIVCE AND ELECTROCHEMICAL DEIVCE

摘要

本发明提供一种电化学装置用分离器以及具有所述分离器之电化学装置，所述电化学装置用分离器包括：多孔聚合物膜；以及多孔涂层，其形成于所述多孔聚合物膜之一个或两个表面上且包括无机粒子及有机粒子中之至少一者以及黏合剂聚合物，其中所述多孔聚合物膜之表面中之原纤维在所述多孔聚合物膜与所述多孔涂层之间的接触表面中与所述多孔涂层中之所述粒子缠在一起，且所述分离器具有100秒/100立方公分至800秒/100立方公分之空气渗透率、0.5欧姆至1.5欧姆之电阻以及在加工方向及横向方向中之每一者上的8%或更小之热收缩率。; and a porous coating layer formed on one or both surfaces of the porous polymer film and comprising at least one of inorganic particles and organic particles, and a binder polymer, wherein fibrils in the surface of the porous polymer film are entangled with the particles in the porous coating layer in the contact surface between the porous polymer film and the porous coating layer, and the separator has an air permeability of 100 to 800 sec/100 cc, an electrical resistance of 0.5 to 1.5 Ω, and a heat-shrinkage rate of 8% or less in each of machine and transverse directions, and an electrochemical device having the same.