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See you at Hunkeler Innovation Days - Messe Luzern, 27th February - 2nd March, Stand No. 301

Lithium-ion Battery Separator

Excellent thermal stability & electro-chemical performance - battery separators by delfort.

Lithium-ion Battery SepArators

Our battery separators offer excellent value propositions to cell manufacturers and meet all the critical demands of lithium-powered battery applications. See for yourself!


  • Excellent thermal stability and safety
  • Facilitates long lifecycle
  • Ultra-fast electrolyte uptake
  • Good for high c-rate performance
  • Excellent stability under electrode swelling conditions
  • Design flexibility for high energy and power applications


  • Less than 1% shrinkage after exposure for 1h at 230°C
  • High permeability and porosity
  • Highest stability under high compressive loads and temperatures


  • E-mobility
  • Industrial power equipment
  • Energy storage systems
  • Power tools