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Home
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Membranes
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Fuel Cell Membranes

FS-990-PKS - Fuel Cell Membrane

FUMATECH BWT GmbH

  • Fuel Cell application (H2-PEMFC)
  • Ready for use without pretreatment

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Description Vendor

The FS-990-PKS is a perfluorinated cation-exchange membrane specifically designed for use in fuel cell applications (H2-PEMFC). It is characterized by its low electrical resistance, high mechanical stability, minimal dimensional swelling, and exceptional stability in acidic environments. The membrane is delivered as a transparent foil on a colorless rigid PET backing layer and is ready for immediate use without any pretreatment. It is reinforced with PK for added durability and is suitable for use in dry form. The membranes performance is supported by its high ion exchange capacity (IEC) and excellent mechanical properties, making it ideal for demanding fuel cell environments.

Use Cases

  • Fuel Cell application (H2-PEMFC)

Capabilities

  • Ready for use without pretreatment
  • High mechanical stability
  • High stability in acidic environment
  • Low resistance
  • Low dimensional swelling (<2%)
  • High ion exchange capacity (IEC: 1.11–1.20 meq/g)
  • High conductivity in H₂O at 25 °C in H-form (>50 mS/cm)
  • High yield strength and tensile strength (>25 MPa)
  • Elongation at break >20%
  • High Young’s modulus at 23 °C / 50% r.h. (>700 MPa)
FUMATECH BWT GmbH FUMATECH BWT GmbH, a subsidiary of the BWT Group headquartered in Bietigheim-Bissingen, Baden-Württemberg, Germany, specializes in innovative ion-exchange membrane technology serving two key electrochemical application fields: water treatment and energy-related applications including PEM fuel cells, water electrolysis, and redox-flow batteries. Drawing on over 25 years of experience in membrane manufacturing and membrane process technology—from synthesis of raw and auxiliary materials through membrane processing to technical application—FUMATECH has earned particularly high international reputation as a supplier of innovative membranes, the heart of the PEM fuel cell. The company's polymer electrolyte membranes for electrolysis and fuel cell applications, based on PFSA polymer and typically produced in reinforced versions, along with its FAA3 quaternary ammonium-based anion exchange membranes, support water electrolysis and photo-electrolysis research including studies on water-splitting hydrogen and oxygen evolution reactions. FUMATECH's parent company BWT provides complementary water treatment systems specifically designed for hydrogen production, delivering the pure water required for electrolysis processes with the highest hygiene safety and quality standards, positioning the combined FUMATECH-BWT offering as a comprehensive membrane and water treatment solution provider across the growing green hydrogen production and fuel cell technology market.
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