SEPARATOR AND LITHIUM BATTERY INCLUDING SEPARATOR

Provided are a separator and a lithium battery, the separator including: a porous substrate; and a first coating layer disposed on a surface of the porous substrate and including an organic particle having a melting point (T) in a range of 100 °C to 130 °C, a particle-type boehmite, a needle-shaped ceramic particle, and a first binder; a first adhesive layer disposed on another surface of the porous substrate, having a glass transition temperature (Tg) of 50 °C or higher, and containing a particle-type second binder; and a second adhesive layer disposed on the first coating layer, having a glass transition temperature (Tg) of 50 °C or higher, and including a particle-type second binder.