The 100*100mm standard Ti Mesh-Plate Composite Sheet for PEM Bipolar is a material specifically engineered for use in proton exchange membrane (PEM) fuel cell bipolar plates. By combining a titanium sheet with expanded titanium mesh, it delivers excellent electrical conductivity while maintaining a lightweight and robust structure. The inherent corrosion resistance of titanium ensures long-term stability in the acidic operating environment of fuel cells, providing reliable mechanical support and efficient current conduction.

Through a carefully controlled sintering process, the plate and mesh are firmly integrated, creating a uniform porous network that facilitates effective gas diffusion and water management. This structural design not only improves reaction efficiency and consistency but also enhances the durability of the fuel cell, contributing to higher overall performance in clean energy systems.

Products Specifications

Material	Titanium Plate + Titanium Expanded Mesh
Dimensions	100 x 100 mm
Thickness	0.35 mm
Process	Sintering

Products Features

035mm Ti Mesh Composite Plate For PEM Bipolar Sheet

High Electrical Conductivity
The continuous titanium structure within the composite plate ensures that current is evenly distributed across the electrode surface, providing stable and reliable energy output that enhances the overall efficiency of the fuel cell.

Optimized Gas Diffusion
The mesh layer forms fine channels that allow hydrogen and oxygen to spread uniformly across the reaction area, minimizing local concentration differences and improving both reaction consistency and operational stability.

Excellent Water Management
The porous network within the plate enables rapid removal of water generated during fuel cell reactions, preventing local flooding and maintaining stable operation under varying working conditions.

Ultra-Thin Structural Advantage
With a total thickness of only 0.35mm, the design reduces the overall weight of the fuel cell stack while allowing for higher power density within limited space, improving both system compactness and performance.

Strong Environmental Resistance
Titanium's inherent corrosion and acid-base resistance ensures that the composite plate maintains structural integrity and functional stability even in acidic, humid, or chemically aggressive environments.

applications

Fuel Cell Stack Structural Support
The composite plate provides stable mechanical support for the fuel cell stack while ensuring reliable contact between individual cells, helping maintain overall stack integrity and long-term durability.

Controlled Distribution of Reactant Gases
The mesh layer creates fine channels that guide hydrogen and oxygen evenly across the reaction surface, enhancing utilization of the active area and minimizing performance loss due to local concentration differences.

Water Management and Drainage
The porous network allows rapid removal of water produced during fuel cell reactions, preventing accumulation or flooding, and ensuring consistent operation under varying conditions.

Lightweight System Design
With a thickness of only 0.35mm, the plate reduces the overall weight of the fuel cell stack and allows higher power density in limited space, supporting compact and efficient system designs.

Corrosion Resistance and Harsh Environment Adaptability
Titanium's inherent corrosion and chemical resistance enables the composite plate to maintain stable performance under acidic, humid, or high-temperature environments, ensuring long-term reliability of the fuel cell system

FAQ

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Common Problem

How does this composite sheet ensure low contact resistance with the gas diffusion layer (GDL)?

Contact resistance is governed by two primary factors-interfacial contact condition and surface oxide characteristics. Through the sintering process, the raised mesh structures are uniformly distributed across the plate surface. Under assembly clamping pressure, the mesh wire tips preferentially form multi-point contacts with the GDL, effectively reducing the actual contact area ratio and thereby minimizing contact resistance. This structural design ensures stable interfacial conductivity without relying on additional conductive coatings.

What are the standard dimensions of this product? Are non-standard sizes or custom-shaped cuts supported?

The standard size is 100×100 mm. In addition, we offer customized dimensioning and profile cutting services tailored to specific customer requirements, including slitting, sheet cutting, and laser contouring. Minimum order quantities and lead times are negotiable based on the final specifications. For volume production orders, we also provide roll-to-roll continuous supply options to support high-throughput automated stamping lines.

Does this product require additional coatings or surface treatments before use, or is it ready for direct application?

This product is ready for direct use without any post-processing coatings. The naturally formed dense titanium oxide film on the substrate surface already provides sufficient corrosion resistance and conductive compatibility for most PEM fuel cell operating conditions. However, for specific application scenarios-such as achieving even lower contact resistance or enhanced surface hydrophilicity-we offer optional post-treatment services including plasma treatment to improve wettability and selective noble metal (e.g., Pt or Au) localized plating to further reduce interfacial resistance. These treatments are optional add-ons rather than standard manufacturing steps, and customers may select them based on their specific stack design requirements.

Is this product recyclable at the end of its service life? Does it meet the environmental and sustainability requirements of the current fuel cell industry?

Yes. This product features a single titanium-based material system with no dissimilar metal coatings or organic binders, eliminating the need for complex material separation during the recycling process. End-of-life composite sheets can be processed through conventional titanium scrap recycling channels for remelting and regeneration. The recovery process releases no toxic or hazardous substances, and a high metal recovery rate is readily achievable. Compared with carbon-based bipolar plates or coated metallic plates, this product demonstrates clear advantages in lifecycle carbon footprint reduction and resource circularity, aligning with increasingly stringent environmental regulations and ESG (Environmental, Social, and Governance) objectives within the fuel cell industry.