ION CONDUCTING BATTERY SEPARATOR FOR LITHIUM BATTERIES, METHOD FOR THE PRODUCTION AND USE THEREOF

摘要

The invention relates to separators for lithium batteries and to a method fo r the production and use thereof. The inventive separators for lithium batteri es are based on a flat, flexible substrate provided with a plurality of opening s with a porous, inorganic, electrically insulating coating disposed on and in said substrate, closing the openings of the substrate, the material of the substrate being selected from woven or non-woven electrically conductive polymer fibers and the inorganic electrically conductive coating having meta l oxide particles. The inventive separators are characterized in that the separators have lithium ion conducting properties without the presence of an electrolyte. After charging with an additional lithium ion conducting electrolyte, a significantly higher conduction of ions is obtained in comparison with conventional combinations of non lithium ion conducting separators and electrolytes. The inventive separators are particularly suitable for use in high-power lithium batteries. .