SEPARATOR AND METHOD FOR MANUFACTURING SEPARATOR

摘要

The present invention relates to a separator and a method for manufacturing a separator, and provides a separator comprising: a first nanofiber layer (20) having a lattice shape from a level view; a second nanofiber layer (30) which is installed on one surface of the first nanofiber layer (20) and is thinner than the first nanofiber layer (20); the separator (10) provided with a third nanofiber layer (40), which is installed on the other surface of the first nanofiber layer (20) and is thinner than the first nanofiber layer (20), wherein the first nanofiber layer (20) has a width between 7µm-30µm, the second nano fiber layer (30) and the third nanofiber layer (40) both have a width between 1µm-5µm, thereby providing the separator having high conductivity, high durability to dendrite, high ion conductivity, and high mechanical strength.