The fuel cell
research center

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Dr.-Ing. Jörg Karstedt

ZBT-Coordinator Emobility
Division fuel cells and systems

phone: +49-203-7598-1178
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Metallic Bipolar Plates

Development and characterization of metallic bipolar plates

Since 2007 ZBT is engaged in the development and characterization of metallic bipolar plates. Due to packaging-, weight and cost advantages for high-volume series production, metallic bipolar plates are especially suited for automotive applications. Regarding the material selection for metallic bipolar plates technical aspects like corrosion affinity, electrical conductivity and formability as well as economic aspects have to be considered.

ZBT focuses on the development of metallic bipolar plates and the characterization of bipolar plate and coating materials in in-situ and ex-situ tests.

ZBT develops applictation-specific optimized flowfield designs. By combining CFD-simulation and rapid-prototyping validation testing, significant cost and time savings can be realized compared to a tool-based iterative optimization process.

Performance optimization by simulation and rapid-prototyping validation

In cooperation with industrial partners ZBT develops sealing solutions also for automotive stacks operating at elevated pressures. ZBT realizes fuel cell gaskets for small and medium quantities (e.g. via dispenser, screen printing).

ZBT sealing solution for metallic bipolar plate

For the investigation of structured and unstructured metallic material samples the following tests can be performed:

  • conductivity measurement (contact resistance measurement)
  • voltammetric measurements
  • accelerated emersion test (chemical stability)
  • In-cell-tests of bipolar plates
  • Size accuracy measurement for production quality assurance by TTV-3D
  • measurement (total thickness variation): topographical measurement on both sides and surface analysis (roughness & peak-to-valley ratio)
  • Measurement of tensile and flexural modulus
Last update:  16.06.2016