Proton Exchange Membrane (PEM) for Fuel Cells & Electrolysers

Proton Exchange Membrane, or polymer electrolyte membrane, is a semi-permeable ionomer membrane that is a proton conductor but an electrical insulator. In a fuel cell, the PEM allows protons generated at the anode to pass through to the cathode, where they combine with electrons and oxygen to form water. In a water electrolyser, the reverse applies: the PEM allows protons to pass from the anode to the cathode to generate hydrogen gas.

Our PEM membranes are manufactured to close specifications, having a consistent thickness and high-quality surface finish. Their robust chemical and mechanical properties make them a reliable choice for demanding applications in the clean energy sector. They are compatible with standard catalyst coating techniques, facilitating the manufacture of high-performance catalyst coated membranes (CCMs).

Key Benefits

• Improved Proton Conductivity: Designed for maximum ion transfer, delivering high current density and best system performance.
• High Gas Barrier: Acts as a robust, pore-free separator to ensure fuel and oxidant gas separation, offering safety and high efficiency.
• Improved Chemical & Thermal Stability: Resistant to degradation under harsh chemical and high-temperature operating conditions.
• Long-Term Reliability: Engineered to provide performance for thousands of hours of service with reduced need for maintenance and replacement.
• Universal Platform: Applicable for use either in electrolysers (for hydrogen production) or fuel cells (for electrical power).

Application:

• Fuel Cells: The most important ingredient for automotive, portable, and stationary power generation.
• Water Electrolysis: Central to high-purity green hydrogen production systems.
• Hydrogen Generators: Used in on-demand H₂ production units for laboratory, industrial processes.
• Redox Flow Batteries: Utilised as a separator in certain next-generation energy storage systems.
• Educational Kits: An ideal component for the demonstration of clean energy technology in classrooms.

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