SEPARATOR HAVING POROUS COATING LAYER, AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME

摘要

PURPOSE: A separator is provided to reduce the ventilation time along with improvement of balanced dispersion and adhesion by preventing tally of coating layer without having not coated area during the coating. CONSTITUTION: A separator comprises porous base material having multiple pores, a porous coating layer including fixing binder, and polyvinylidene fluoride group copolymer and acrylic copolymer. Moreover, the electrochemical device comprises a cathode, an anode, and an interposed separator.