Precision Titanium Etching Bipolar Plates for Hydrogen Fuel Cell Thickness 0

Product Specification

Basic Information of Titanium Etching Bipolar Plates:

Precision Titanium Etching Metallic Bipolar Plate For Hydrogen Fuel Cell

Bipolar plates are main component of proton exchange membrane, alkaline and solod oxide fuel cells and electrolyzers. They are processed with complex flow fields or channels, when they stacked, it can distribute gas and air, also conduct electrical current from one cell to the next.

Specifications of Metallic Bipolar Plates We Etch:

Features of Titanium Etching Bipolar Plates:

The bipolar plate is one of the core components in fuel cells and electrolyzers. It plays multiple roles in the stack, including conducting electricity, transporting gases and liquids, supporting the membrane electrode assembly (MEA), and managing heat and moisture. Its performance directly affects the efficiency, lifespan, and cost of fuel cells.

1. Excellent Corrosion Resistance

Titanium offers outstanding resistance against acids, alkalis, and humid environments, making it ideal for PEM fuel cells and water electrolyzers, where long-term stability is critical.

2. Lightweight with High Strength

Compared to stainless steel and graphite, titanium provides a high strength-to-weight ratio, reducing stack weight while maintaining structural integrity. This is especially valuable in automotive and aerospace fuel cell applications.

3. Precision Micro-Channel Design

Through chemical etching, flow channels as small as 100 μm can be created with high dimensional accuracy. This ensures uniform reactant distribution and improves mass transfer efficiency inside the cell.

4. Thin and Compact

Titanium bipolar plates can be etched down to 0.05–2.0 mm thickness, achieving compact and lightweight stacks without compromising performance.

5. Stress-Free and Burr-Free

Unlike stamping or laser cutting, etching does not introduce mechanical stress, cracks, or burrs. The smooth channel surfaces improve sealing performance and reduce energy losses.

6. Compatibility with Coatings

Etched titanium plates can be further enhanced with surface coatings (e.g., gold, carbon, or conductive layers) to improve conductivity and reduce interfacial contact resistance (ICR).

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:

Traditional methods for manufacturing bipolar plates include stamping, laser processing, and CNC milling, but these methods have certain limitations when it comes to fine channels and ultra-thin sheets. Photochemical etching, however, has unique advantages in the manufacture of metal bipolar plates.

Why Choose Photochemical etching for manufacturing bipolar plate?

lHigh precision: capable of processing minimum channel widths of 0.1 mm with controllable depth, ensuring uniform fluid distribution.

lStress-free and burr-free: avoids deformation and cracks caused by mechanical processing, ensuring airtightness.

lSuitable for ultra-thin metal sheets: capable of processing thicknesses ranging from 0.02 mm to 3.0 mm, with common bipolar plate thicknesses between 0.05–1.0 mm.

lFlexible design: Enables complex double-sided semi-etched channels, suitable for customized R&D and rapid iteration.

lCost advantage: Low mold costs, suitable for small to medium-volume production 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                                         Surface Coated                                         Laser Cutting

  We can etch different depths of                                                 For stainless steel materials,                               For metal sheets thicker

flow channels on the same side.                                               we will electroplate the surface                           than 1.5 mm, we use laser cutting

  Also support etch depths on                                             to protect the bipolar plate from oxidation.                to achieve the required size or shape.

          the different sides. 

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:

1.What is the price of bipolar plate customization?

 -- 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.

2. How do we custom the bipolar plate?

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

3. How can we guarantee quality?

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

4. Why should you buy from us not from other suppliers?

 -- 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.

5. What services can we provide?

 -- 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