SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Provided are a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator for a rechargeable lithium battery includes a porous substrate and a coating layer on the porous substrate. The coating layer includes boron nitride (BN) and a binder, and an amount of the boron nitride based on total 100 wt% of the coating layer is less than about 70 wt%.