They are used for the separation of the positive and negative electrodes and at the same time to store the electrolyte in order to enable a good ion flow. The types and ratings of batteries in general are as many and varied as their applications in drive technology, communications, power tools, toys and numerous other fields as well.

Advantages:
      High uniformity and tight pore-radius distribution
      Reliable separation of the positive and negative electrodes
      high energy output.
      High pore volume
      Customized finishing-hydrophilic or hydrophobic properties