Precision Micro-Channel Titanium Etching Bipolar Plate 0.05mm to 3mm Thickness

Product Specification

Basic Information of Titanium Etching Bipolar Plates:

Precision Micro-Channel Titanium Etching Bipolar Plate 0.05mm to 3mm Thickness Customization

Bipolar plates are key components in proton exchange membrane, alkaline, and solid oxide fuel cells, as well as electrolyzers. They are manufactured with intricate flow channels that, when stacked, enable the uniform distribution of gases, facilitate air circulation, and efficiently conduct electrical current between individual cells.

Specifications of Metallic Bipolar Plates We Etch:

Features of Titanium Etching Bipolar Plates:

As a core element of fuel cells and electrolyzers, the bipolar plate fulfills several critical functions within the stack. It conducts electrical current, guides the flow of gases and liquids, provides structural support to the membrane electrode assembly (MEA), and helps regulate heat and humidity. The quality of its performance has a direct impact on the overall efficiency, durability, and cost-effectiveness of the fuel cell system.

• Corrosion Resistance – Excellent stability against acids, alkalis, and humid environments, ensuring long service life in PEM fuel cells and electrolyzers.

• Lightweight & Strong – High strength-to-weight ratio reduces stack weight while maintaining durability, ideal for automotive and aerospace use.

• Precision Channels – Chemical etching enables micro-channels down to 100 μm with high accuracy for efficient gas distribution.

• Thin & Compact – Thickness range 0.05–2.0 mm supports lightweight, space-saving stack designs.

• Burr-Free & Stress-Free – Etching avoids cracks or deformation, providing smooth channels for better sealing and lower energy loss.

• Coating Compatible – Surfaces can be coated (e.g., gold, carbon) to enhance conductivity and reduce contact resistance.

Application of Titanium Etching Bipolar Plates:

1. Hydrogen Fuel Cell: Automotive fuel cells, portable power supplies, and stationary power stations.

2. Water Electrolyzer: Green hydrogen production, PEM electrolyzers, and alkaline electrolyzers.

3. Energy Conversion Equipment: New energy storage systems such as metal-air batteries and flow batteries.

Photochemical Etching Bipolar Plate:

Conventional manufacturing methods for bipolar plates—such as stamping, laser cutting, and CNC milling—face challenges when producing ultra-fine channels or handling very thin sheets. Photochemical etching overcomes these limitations and offers distinct advantages in bipolar plate production.

Why Choose Photochemical etching for manufacturing bipolar plate?

• High Precision – Achieves channel widths as small as 0.1 mm with controlled depth for uniform fluid flow.

• Stress- & Burr-Free – No deformation or cracks, ensuring excellent sealing performance.

• Ultra-Thin Capability – Processes sheets from 0.02 mm to 3.0 mm, ideal for typical bipolar plate thicknesses of 0.05–1.0 mm.

• Design Flexibility – Supports complex double-sided and semi-etched structures, enabling customization and fast prototyping.

• Cost Efficiency – Low tooling cost makes it suitable for small to medium batches and prototype development.

Titanium Bipolar Plate Manufacturing Technology:

We have the capability to etch both curved and straight channels across full metal sheets, allowing for the seamless realization of intricate designs. Moreover, our process achieves precise depth control, guaranteeing accuracy and consistency in every project.

• Etching Dual-Depth Channels                                                                                 

          We can etch different depths of low channels on the same side. Also support etch depths on the different sides.                                                                                                                

• Surface Coated                  

          For stainless steel materials, we will electroplate the surface to protect the bipolar plate from oxidation.

• Laser Cutting

          For metal sheets thicker than 1.5 mm, we use laser cutting to achieve the required size or shape.

Package and Shipment of Titanium Etching Bipolar Plates:

We provide protective layer in the covers, PE bag, Foam in box, Waterproof package, Or as your request.

Shipment Methods:

EMS: Around 10-15 working days

DHL: Around 3-5 working days

FedEx: Around 4-6 working days

UPS/TNT: Around 6-8 working days

AIR: Around 5-7 working days

SEA: Around 15-30 working days

FAQ:

Q: What is the price of bipolar plate customization?

A: The price will be depended on material, thickness, size and other requirements, please feel free to send us your detail requirements, we’ll offer you the price asap.

Q: How do we custom the bipolar plate?

A: Please send us your drawing in DXF, DWG, STEP, PDF and other formats, we’ll do the evaluation and offer you the price.

Q: How can we guarantee quality?

A: We always a pre-production sample before mass production, and always 100% final Inspection before shipment.

Q: Why should you buy from us not from other suppliers?

A: Xinhaisen is established to specialized in the production of high-quality, finite and micro-size photo chemical etching metal products.Our seventy professional staff specialized in research and development , manufacturing and marketing service.

Q:  What services can we provide?

A:  Accepted Delivery Terms: FOB, CFR, CIF, EXW；

 Accepted Payment Currency:USD, EUR, JPY, CAD, AUD, HKD, CNY;

 Accepted Payment Type: T/T, Paypal, Western Union, Cash.

Do you want to custom the bipolar plate?   

Click "contact us" below to send us the drawing of Bipolar plate, we support DXF, DWG, STEP etc. Format.

Or send email directly at bella.xiang@xinhsen.com  /  WhatsApp: +86 18025476918