Product specifications
MEA and CCM configurations are defined through a combination of dimensional, membrane, catalyst and assembly parameters. Hyverra supports specification matching for PEM fuel-cell and PEM water-electrolysis applications, from individual CCMs to complete MEA assemblies.
- Active area and overall dimensions.
- Membrane type and thickness.
- Catalyst system and catalyst loading, with anode and cathode specifications defined independently where required.
- Gas diffusion layer (GDL) selection for complete MEA assemblies.
- Sealing structure and final assembly format.
Configuration architecture
The appropriate assembly level depends on the function required from the component and the degree of integration needed in the customer’s cell or stack. Hyverra can support configurations ranging from CCMs to multi-layer MEA assemblies.
- CCM: proton-exchange membrane with catalyst layers applied to the anode and cathode sides.
- 3-layer MEA: the membrane and two catalyst layers form the electrochemically active core.
- 5-layer MEA: gas diffusion layers are added on both sides of the 3-layer structure.
- 7-layer MEA: additional sealing or gasket layers are incorporated according to the required assembly design.
Technical details
MEA performance depends on the interaction of its constituent layers rather than on any single specification in isolation. Membrane characteristics, catalyst formulation and loading, gas-diffusion properties and sealing design must therefore be considered together in relation to the intended operating conditions.
- Membrane selection is considered in relation to the application, operating environment and required assembly.
- Catalyst formulation and loading can be differentiated between anode and cathode according to reaction requirements.
- GDL selection is matched to the required gas transport, electrical contact and water-management conditions of the assembly.
- Sealing and dimensional configuration are defined in relation to the cell hardware and integration requirements.
Applications & project requirements
Hyverra supports MEA and CCM configurations for PEM fuel cells, PEM water electrolysis and application-specific research, evaluation and prototyping. Final configuration is determined from the technical information available at the relevant stage of the project.
- PEM fuel cells and PEM water electrolysis.
- Research, evaluation and prototyping requiring application-specific MEA or CCM configurations.
- Relevant project inputs may include active area, membrane requirements, catalyst system and loading, operating conditions, target performance, quantity and development stage.