GALVANIC ELEMENT AND SEPARATOR HAVING IMPROVED SAFETY PROPERTIES

摘要

The invention relates to a galvanic element comprising a positive electrode, a negative electrode and a separator disposed between the two electrodes, wherein the separator is made at least partially of a polymer, the melting and/or softening temperature is > 200ºC. Furthermore a multi-layer separator for galvanic elements, particularly for lithium ion batteries, is described, which comprises at least one layer made of the polymer having a melting and/or softening temperature of > 200ºC.