Separator for lithium polymer batteries and method for the production thereof

摘要

Separators for lithium-polymer batteries and methods for their production are described. One separator has the capability of preventing meltdown and short-circuit in the event of overheating an overvoltage. One separator is a dual-component fabric based on glass fibers and polymer fibers and comprises micropores for impregnation. One such fabric has a thickness of 2 through 15 mum and is used as an intermediate layer between anode and cathode; applications of absorber additives such as magnesium oxide or magnesium carbonate improve the effectiveness of the separator.