| abstract |
The invention relates to a separator with a main part which is made of nonwoven material, said main part being provided with a coating. The coating contains filler particles, cellulose, and flexible organic binder particles, said filler particles and flexible organic binder particles being connected to each other by the cellulose. The aim of the invention is to design and develop a separator such that said separator exhibits high permeability with increased mechanical stability. The separator is characterized in that the cellulose contains cellulose derivatives that have a chain length of at least 100 repeating units, preferably a chain length of at least 200 repeating units. |