Nickel expanded mesh (often referred to as nickel wire mesh or stretched nickel mesh) exhibits several properties that make it suitable for fuel cell applications. Fuel cells, such as proton exchange membrane (PEM) or solid oxide fuel cells (SOFC), require materials with high corrosion resistance, thermal stability, and electrical conductivity to handle electrochemical reactions involving hydrogen or other fuels.
What are the advantages of nickel expanded mesh in fuel cells?
Excellent Electrical Conductivity
Nickel provides efficient electron transfer, making expanded mesh a reliable current collector in various fuel cell types.
High Corrosion Resistance
Fuel cells often operate in harsh chemical environments (acidic, alkaline, or high-temperature). Nickel expanded mesh resists corrosion, extending the service life.
Mechanical Strength & Stability
The expanded mesh structure offers rigidity with flexibility, providing long-term stability under mechanical stress and thermal cycling.
High Gas Diffusion
The open mesh design allows efficient distribution of gases (hydrogen and oxygen), which is critical for improving electrochemical reaction efficiency.
Typical Fuel Cell Applications of Nickel Expanded Mesh
PEMFC (Proton Exchange Membrane Fuel Cell): Used as current collectors and electrode supports.
AFC (Alkaline Fuel Cell): Serves as gas diffusion electrode substrate.
SOFC (Solid Oxide Fuel Cell): Combined with ceramics (e.g., Ni-YSZ) as an anode support.
DMFC (Direct Methanol Fuel Cell): Functions as catalyst carrier and flow distributor.
