Analytical Services

Ex-situ analysis of fuel cells and electrolysis components

Mechanical properties

  • Tensile test
  • 90° peel-off test
  • Erichsen depth measurement
  • 3-point bending test

Chemical properties

 

  • Element composition, element distribution (mapping)
  • Phase identification, crystallinity, crystallite size
  • Depth profiles of element concentration
  • Chemical surface properties (before/after modification) for catalysts and carriers

Pore analysis

 

  • Pore size distribution, porosity, specific pore volume
  • Simulation of permeability / wetting / tortuosity
  • In-situ 3D pore structure
  • Bulk density

Structural and surface properties / wetting properties

 

  • Surface properties, topography, morphology, flatness, roughness
  • Density
  • Material and film thickness
  • Defect analysis, crack width distribution
  • Internal surface
  • Conductivity and bulk density of catalyst powders
  • Surface energy, surface tension
  • Static and dynamic water contact angle
REM, NMT

Transport properties

 

  • Permeability
  • Diffusion
  • Conductivity
    • Contact resistance and electrical conductivity
    • Ionic conductivity
    • Electrical/ionic conductivity
    • Thermal conductivity, specific heat capacity (through plane, in plane, in combination with contact resistance)
  • Water detection
  • 2-phase flow
  • Melting point

 

Qualitätskontrolle von Bipolarplatten mit dem BePPel-Teststand

Degradation and damage analysis

 

  • Stability and degradation of
    • Bipolar plates
    • Membranes, CCMs
    • GDL and GDS
    • Catalysts and catalyst carriers
    • Plastics and sealing materials
  • Corrosion properties
  • Detection of pinholes in MEAs / CCMs using IR thermography
  • Investigation of the cold start behaviour of components and under cyclic freeze-thaw cycling

In-situ analysis

Diagnostics

 

  • Test options for fuel cell stacks
  • Test options for electrolysis stacks
  • In-situ tests for PEMBZ MEAs
  • In-situ tests for PEMWE and AEMWE CCM and MEA (HFR, EIS, CV, ECSA, H2 permeation)
  • In-situ qualification of coatings and substrate materials for bipolar plates
  • Test chamber for investigating solids, liquid substances and even powdered additives
  • Investigation of the cold start behaviour of PEMBZ components and under cyclic freeze-thaw cycling
Greenlight Teststand, Julian Kapp

Gas analysis

Gas analysis and gas purification

 

  • Sampling and hydrogen analysis in accordance with EN 17124:2022v
  • Analysis of sulphur compounds, natural gas, ammonia, etc.
  • Harmful gas testing of fuel cells
  • Development of cleaning processes

 

Blick ins Hy-Lab des ZBT - Zentrum für BrennstoffzellenTechnik, in dem Wasserstoffproben auf ihre Reinheit untersucht werden
Hy-Lab – Laboratory for hydrogen quality