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Battery Separator Film

Batteries power many everyday applications, including consumer electronics, household appliances, and electric vehicles. Separator films are crucial to battery production because they influence safety and energy density.

BOPE (mostly ultra-high molecular weight polyethylene) is the most commonly used material. As the global demand for electric vehicles (EVs) and renewable energy increases, so will the demand for batteries and separator films.

Brückner’s lines for battery separator films with 8.7 m usable film width are the largest of their kind in the world, with an annual output of up to 500 million m² and with consistent film quality.

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Line Types

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Sequential

Sequential

Working width [m]

6.6

8.7

Annual output [tpa]
(8,000 hours)

315

500

Nominal output [kg/h]

39,500

62,500

Production speed [m/min]

100

120

Thickness range [µm]

5 to 20

5 to 20

A Wide Range of Applications

Battery Separator Film delivers high puncture resistance, excellent Gurley distribution, and minimal shrinkage. With a perfect thickness profile and constant pore size, it ensures reliable performance and superior safety for advanced battery applications.

Flyer 'Battery Separator Film'
  • Electric mobility

  • Energy storage system

  • E-trucks & buses

  • Consumer electronics

  • Aerospace

  • Power tools

  • and many more!

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Always Close By. Anywhere in the World.