NOVELTY - The separator separates the positive electrode (12) and the negative electrode (14) of a galvanic element (10). A substrate includes a high-temperature-resistant, fiber-forming polymer having a melting point above 200 degrees C, and a further polymer having a lower melting point than the high-temperature-resistant polymer of the substrate and being configured to connect the fibers of the high-temperature-resistant polymer. The separator is composed of high-temperature-resistant, fiber-forming polymer configured in the form of random fiber fabric.    USE - Separator for galvanic element such as lithium ion cell including lithium ion polymer cells or lithium polymer cells used in motor vehicle (all claimed). Can also be used in cell phone, MP3 player, hybrid electric vehicle, plug-in hybrid electric vehicle, electric vehicle, micro-hybrid vehicle, etc.    ADVANTAGE - The separator is produced in an extremely cost-effective way by the modification of unwoven membrane made from a high-melting polymer, and the porosity is adapted to the individual conditions. The combination of a chemically, electrochemically, and mechanically stable, high-melting polymer-based separator having a labyrinth porosity, with polyolefin-based polymer incorporated in-between the fibers, and with a porosity which affords a very high degree of intrinsic safety, which has beneficial consequences for the safety performance of the cell, is provided. The separator is highly tensile and puncture resistant. The polymers of this kind exhibit significantly reduced peripheral contraction, so the separator is thermally and mechanically stable and exhibits no change in geometry.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a method for producing a separator; and    (2) a galvanic element.    DESCRIPTION OF DRAWING(S) - The drawings show a schematic view of the migration direction of lithium?ions during charging, from the positive electrode to the negative electrode, and a schematic view of the migration direction of lithium ions during discharging, from the negative electrode to the positive electrode.    Galvanic element (10)    Positive electrode (12)    Negative electrode (14)    Positive side of the galvanic element (28)    Negative side of the galvanic element (30)