Protective layer with improved contacting for lithium cells and / or lithium batteries

摘要

The present invention relates to a separator (4) for a lithium cell and / or battery (1), in particular for a lithium metal cell and / or battery. In order to improve the life of the cell and / or battery equipped therewith, the separator (4) comprises at least one protective layer (4a) and at least one contact layer (4b, 4b '), the at least one protective layer (4a) comprising at least one single lithium ion conductive polyelectrolyte and The at least one contact layer (4b, 4b ') comprises at least one single-lithium ion-conducting polyelectrolyte and / or at least one polymer electrolyte comprising at least one lithium-ion-conductive polymer and at least one lithium conducting salt, and wherein the at least one lithium ion-conductive polymer comprises at least one lithium ion-conducting or lithium ion-conductive block copolymer at least one contact layer (4b, 4b ') is softer than the at least one protective layer (4a). Moreover, the invention relates to such an electrode and cell and / or battery (1) and a method for their preparation.