Abstract: A packaging includes a composite material. The composite material includes a barrier layer and a backing layer. The backing layer includes a spunbonded nonwoven, arranged on at least one side of the barrier layer and bonded to the barrier layer by heat and pressure. The barrier layer includes a nonwoven containing 1 to 70 wt % melt-blown fibers and 30 to 99 wt % staple fibers, relative to a total weight of the nonwoven in each case.

Abstract: The present invention provides a separator and a method for manufacturing the separator. The separator includes a first nanofiber layer (20) which has a lattice shape when viewed from a plan view, a second nanofiber layer (30) which is provided on a first surface of the first nanofiber layer (20) and is thinner than the first nanofiber layer, and a third nanofiber layer (40) which is provided on a second surface of the first nanofiber layer and is thinner than the first nanofiber layer. The thickness of the first nanofiber layer ranges from 7 ?m to 30 ?m. The thickness of each of the second and third nanofiber layers ranges from 1 ?m to 5 ?m. The present invention can provide a separator which has high insulation, high dendrite resistance, high ion conductivity and high mechanical strength.

Abstract: The present invention provides a separator and a method for manufacturing the separator. The separator includes a first nanofiber layer (20) which has a lattice shape when viewed from a plan view, a second nanofiber layer (30) which is provided on a first surface of the first nanofiber layer (20) and is thinner than the first nanofiber layer, and a third nanofiber layer (40) which is provided on a second surface of the first nanofiber layer and is thinner than the first nanofiber layer. The thickness of the first nanofiber layer ranges from 7 ?m to 30 ?m. The thickness of each of the second and third nanofiber layers ranges from 1 ?m to 5 ?m. The present invention can provide a separator which has high insulation, high dendrite resistance, high ion conductivity and high mechanical strength.

Abstract: A method for manufacturing metal nanostructure which can manufacture a metal nanostructure which has the structure and properties different from the structure and properties of a conventional material and can be properly used in various applications is provided. The method for manufacturing metal nanostructure includes the steps of: preparing metal-coated organic nanofibers in which surfaces of the organic nanofibers are coated with metal; and preparing a metal nanostructure having the structure where the organic nanofibers are used as a template by removing organic components from the metal-coated organic nanofibers by heating the metal-coated organic nanofibers at a temperature ranging from 250° C. to 600° C.