| abstract |
Disclosed are a separator and an electrochemical device comprising the separator, the separator comprising: a porous substrate having a plurality of pores; and a pair of porous coating layers formed on at least one surface of the porous substrate and containing a plurality of inorganic particles and a binder located on a part or the whole of surfaces of the inorganic particles to connect and fix the inorganic particles, wherein the weight of the binder relative to the total weight of the porous coating layer is 5-40 wt%, wherein the inorganic particles include boehmite particles, wherein the binder includes a fluorine-based binder and a rubber-based binder, and wherein the weight ratio of the fluorine-based binder and the rubber-based binder is 80:20 to 99.9:0.1. |