CMI sintered porous titanium gas diffusion layer sheet for PEM electrolyzer anode stacks

Porous Metal Gas Diffusion Layers

High-precision porous metal GDLs (Gas Diffusion Layers) engineered for PEM fuel cells and electrolyzers. Available in Titanium and 316L Stainless Steel with customized 16%–40% porosity. Delivers superior mechanical strength, zero-creep under stack compression, and optimized water management compared to carbon paper.

Category:

High-Performance Porous Metal Gas Diffusion Layers for Fuel Cells & Electrolyzers

CMI Porous Metal Gas Diffusion Layers (GDLs) are engineered for high-performance PEM fuel cells, electrolyzers, and advanced electrochemical systems.

Manufactured through precision powder metallurgy technology, these porous metallic diffusion layers provide highly controlled and interconnected pore structures for uniform reactant distribution, optimized water management, and excellent electrical conductivity.

Compared to conventional carbon paper or carbon cloth diffusion media, CMI metallic GDLs offer significantly higher mechanical strength, improved dimensional stability, and zero thickness creep under high stack compression conditions.

These materials are especially suitable for high-pressure hydrogen systems, PEM electrolyzers, fuel cell stacks, and next-generation clean energy applications requiring long-term electrochemical stability.

Core Technical Advantages

Mechanical & Dimensional Stability

Maintains stable permeability and consistent thickness (typically ±0.025 mm) under heavy compressive loading in multi-cell stack assemblies.

Optimized Water Management

Engineered pore structures balance gas diffusion and liquid water transport, reducing flooding in fuel cells and improving gas release in electrolyzers.

Superior Corrosion Resistance

Available in Titanium and 316L stainless steel for aggressive acidic or alkaline electrochemical environments with minimal contamination risk.

Surface & Catalyst Compatibility

Compatible with hydrophobic/hydrophilic surface treatments, conductive Au/Pt plating, and direct catalyst coating technologies.

Technical Specifications

Available Materials Titanium (Gr.1 / Gr.2 for PEMWE), 316L Stainless Steel, and noble metal alloys
Porosity Range 16% – 40% open porosity with precisely controlled pore distribution
Thickness Tolerance Typically ±0.025 mm (±0.001")
Surface Treatments Catalyst coatings (Pt / Ir), conductive plating (Au / Pt), and custom surface modifications
Form Factors Ultra-thin sheets, porous plates, patterned flow-field structures, and OEM geometries

Typical Applications

  • PEM Electrolyzers (PEMWE): High-pressure anode and cathode gas-liquid diffusion layers
  • PEM Fuel Cells (PEMFC): Heavy-duty transportation and stationary fuel cell stacks
  • Solid Oxide Fuel Cells (SOFC): High-temperature electrochemical systems and metallic interconnect matching
  • Hydrogen Energy Systems: Water electrolysis, hydrogen generators, and advanced clean energy applications

Accelerate Your Hydrogen Stack Development

CMI supports fuel cell integrators and green hydrogen developers with customized porosity, ultra-thin configurations, and engineered metallic gas diffusion layer solutions.

📩 Technical Consultation: sales@cmifiltration.com

Related Products

Sintered metal polymer filter tube for high-pressure extrusion melt filtration

Sintered Metal Polymer Filters

View Products
Sintered porous metal fluidizing disc for powder hopper aeration and flow assistance

Sintered Metal Fluidizers

View Products
CMI sintered porous metal flame arrestor element for gas flashback protection and explosion proof systems

Sintered Metal Flame Arrestors

View Products
CMI precision sintered metal column frits with PEEK sealing rings for HPLC UHPLC systems

Column Frits

View Products

Technology

At CMI, technology is more than just a manufacturing process; it is the science of precision separation. Our multidisciplinary approach combines advanced metallurgy, fluid dynamics, and rigorous quality validation to solve the world’s most challenging filtration tasks in the hydrogen, power, and high-purity water sectors.

Lab Testing & Quality Validation

Ensuring absolute reliability through rigorous laboratory analysis and international certification. From Bubble Point testing to full material traceability (EN 10204…

Learn More

Filtration Fundamentals

A comprehensive guide to the core principles of filtration technology. Understand the fundamental physics of pressure drop, micron ratings, and…

Learn More

Porous Media Technology

Explore the advanced metallurgy of sintered porous structures. We specialize in engineering high-permeability media from stainless steel, titanium, and nickel…

Learn More

Regeneration & Maintenance Protocols

Maximized filter lifespan through scientific regeneration techniques. We provide standardized cleaning and maintenance protocols to ensure your sintered metal elements…

Learn More

Separation & Coalescing Science

Advanced solutions for gas-liquid and liquid-liquid separation. Our coalescing technology utilizes deep-bed micro-fiber and sintered media to remove sub-micron droplets…

Learn More

Vessel & System Engineering

Expertly engineered filtration housings and integrated systems compliant with ASME VIII, PED 2014/68/EU, and AD2000 standards. We bridge the gap…

Learn More

Get a Quote

Our fabrication experts are ready to help you with custom-made filter housing and fabricated metal filter vessel solutions. Contact us with your specific requirements for a customized quote.

Our Services

Comprehensive filtration solutions from design to maintenance and support

Replacement & Cross Reference Solutions

CMI offers replacement and cross reference filtration solutions compatible with major brands, providing reliable performance, cost efficiency, and flexible supply.

Filtration System Integration & Skid Solutions

CMI delivers complete filtration system integration and skid-mounted solutions with piping, valves, and instrumentation, designed for reliable industrial operation and easy installation.

Global Project Delivery & Logistics Coordination

CMI provides global project delivery and logistics coordination services to ensure safe, efficient, and reliable shipment of filtration equipment worldwide.

Filtration Testing & Validation Support

CMI provides filtration testing and validation support to ensure filtration performance, optimize system design, and reduce operational risks.

After-Sales Support & Spare Parts Supply

CMI provides after-sales support and spare parts supply for filtration systems, ensuring reliable operation, reduced downtime, and long-term system performance.

Custom Engineering & OEM Fabrication

Custom engineering and OEM fabrication services for industrial filtration equipment, including filter housings, pressure vessels, and non-standard filtration systems.