Precision Etched Bipolar Plates for Fuel Cells – High Efficiency, High Performance

Bipolar plates are essential components in hydrogen fuel cell systems, facilitating the flow of hydrogen and oxygen gases while conducting electricity between cells. As clean energy technology advances, the demand for lightweight, high-performance bipolar plates has grown rapidly. Chemical etching has emerged as a leading solution for producing precision-engineered plates that meet the needs of next-generation fuel cells.

1. Advantages of Chemical Etching for Bipolar Plates
Chemical etching offers unique advantages over stamping or laser cutting when manufacturing bipolar plates:

• Burr-free, stress-free surfaces that maintain material integrity and conductivity

• Micro-channel precision: Etching enables channel widths as narrow as 50µm

• Design flexibility: Perfect for complex, multi-layer or serpentine patterns

• Thin metal compatibility: Plates as thin as 0.2 mm can be intricately etched

• Cost-effective prototyping and mass production

These features are especially critical in applications requiring high fuel cell efficiency and tight performance tolerances.

2. Materials & Thickness Range
Etched bipolar plates can be made from various conductive and corrosion-resistant metals, including:

• Stainless steel (SS316L, SS304)

• Titanium

• Nickel

• Custom alloys

Thickness range: 0.05 mm – 1.5 mm

3. Applications
Etched bipolar plates are widely used in:

• Hydrogen fuel cell vehicles (FCEVs)

• Solid oxide fuel cells (SOFCs)

• Portable and distributed energy systems

• Backup power and energy storage systems

4. Why Choose Us for Your Etched Bipolar Plates?
Shenzhen Xinhaisen Technology is a trusted provider of precision metal etching solutions:

• Over 13 years of industry experience

• 7000㎡ factory with ISO-certified cleanroom

• Daily capacity exceeding 55,000 etched parts

• Rapid prototyping & mass production services

• Expertise in custom designs, micro-channels, and high-volume delivery

Contact Us
Looking to enhance your fuel cell performance with high-quality etched bipolar plates?
Contact our team today for sample requests, technical support, or custom etching services.