MULTILAYER SEPARATOR FOR A BATTERY

A multilayer () for a lithium-ion battery having a structure including at least a polyolefin based substrate layer () forming the inner layer of the multilayer separator (); a resin layer () stacked on both surface of the polyolefin substrate layer (), the resin layer () being formed from a polyolefin; a cellulose fibers based outer layer () stacked on the surface of each resin layer ().