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