Custom Metal Bipolar Plates for Fuel Cells/Energy Micro Etching 0.03mm Holes

Overview
Xinhsen Technology is a leading manufacturer of precision-etched bipolar plates for PEM fuel cells, redox flow batteries, and other electrochemical applications. Our advanced chemical etching technology enables mass production of complex flow field patterns with micron-level accuracy, offering superior performance and cost advantages over traditional manufacturing methods.

Technical Specifications

Key Features

✔ Ultra-Precise Flow Channels - Maintains ±0.03mm pattern accuracy
✔ Material Expertise - Corrosion-resistant alloys with conductive coatings
✔ Design Flexibility - Serpentine, parallel, interdigitated, or custom patterns
✔ Cost Efficiency - 50-70% cost reduction vs. CNC machining
✔ Rapid Prototyping - Functional samples in 7-10 working days
✔ Scalable Production - Seamless transition from prototypes to mass production

Frequently Asked Questions (FAQ)

Q1: What is the minimum feature size you can achieve?
A: We routinely produce 0.15mm wide channels with 0.05mm depth, and can achieve 0.1mm features for critical applications.

Q2: How do your etched plates compare to stamped/graphite plates?
A: Etched plates offer:

• Better dimensional accuracy (±0.03mm vs ±0.1mm)

• No material stress or deformation

• More complex channel geometries

• Faster design iterations

Q3: What coatings do you offer for corrosion protection?
A: We provide:

• Gold plating (0.1-0.5μm)

• TiN/TiCN PVD coatings

• Conductive polymer coatings

• Custom solutions per application

Q4: What quality certifications do you have?
A: Our production is:

• ISO 9001:2015 certified

• IATF 16949 compliant (automotive grade)

• Material traceability (EN 10204 3.1/3.2)

Q5: Can you produce microporous plates for gas diffusion?
A: Yes, we can create plates with:

• 0.03mm micro-holes

• 30-70% open area ratios

• Integrated porous layers

Q6: What testing do you perform?
A: Standard tests include:

• Helium leak testing (<1×10⁻⁹ mbar·L/s)

• Contact resistance measurement (<10 mΩ·cm²)

• Salt spray testing (500+ hours)

• Pressure drop analysis

Why Choose Xinhsen?

• 15+ Years Experience in precision metal etching
• Complete In-House Capabilities from design to final inspection
• Fast Turnaround - 5-7 days for prototypes
• Cost Optimization - No expensive tooling required
• Technical Support - CFD simulation assistance available

For over 13 years Xinhaisen has pioneered developments in photochemical etching, achieving standards admired by the industry and appreciated by a global customer base from a wide range of high-tech engineering markets.

Since found in 2012, in affiliating with our customers we have pioneered many new production techniques and methodologies in order to better serve their needs. It is these techniques that have advanced our capabilities further, enabling us to take what was once considered art and turn it into a science.

Now, we became China's leading photochemical etching specialist, with also the capacity of offering stamping and laser-cutting service. Our products include etching bipolar plates for fuel cell, speaker grills,  micro meshes&filters, tea&coffee infusers, shims&gaskets, Optical encoderdisk&strip, EMI/RFI shielding, Leadframes, connectors&contacts, printingstencils&foils and metal crafts.

Quality and service is our mission, Xinhaisen is committed to pursuing the highest standards of environmental performance. Responsibility for sustainability resides with all employees. The company has achieved ISO 14001 and IS0 9001 and IATF 16949 and is committed to maintaining that standard. With a fast response, high quality, best service and fair price, we have gained high reputation from our customers all over the world.