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

The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a porous substrate, and a first layer and a second layer sequentially located on at least one surface of the porous substrate. The second layer includes a mixture of a polyvinylidene fluoride (PVdF)-based adhesive binder and a (meth)acryl-based adhesive binder, and the (meth)acryl-based adhesive binder is a copolymer of a monomer mixture including a (meth)acryl-based monomer having a cyano group and a (meth)acryl-based monomer having an alkyl group.