Coating for metallic bipolar plates – SydroDIAMOND™ 400B
- Metallic bipolar plate coatings are critical to enable the mass-market commercialization of PEM fuel cells
- Sydrogen Energy’s bipolar plate unique coating technology deposit high energy ions onto metal substrates
- This enables a unique coating that combines diamond-like and graphitic carbon on to a range of substrates
- This provides metallic bipolar plates with the corrosion-resistance of diamond, and conductivity of graphite
- This replaces the need for expensive noble-metal based coatings
- Sydrogen Energy has full in-house R&D and control of coating machines, with capability to tailor coatings closely according to customer requirements and specifications
- Commercialized on formed SUS304 substrates but also available for SUS316 and Titanium substrates
- Sydrogen Energy’s coating for metallic bipolar plates are customizable based on customer’s material and performance requirements
Key features
- Minimal Contact Resistance: ensuring high stack performance
- High corrosion resistance: enabling long lifespan minimizing performance drop
- Accelerated stress tests show comparability against gold
- Minimal Ion-leaching: protecting durability of membrane electrode assemblies
- Hydrophobic properties: adjustable water contact angle to ensure effective water management, avoiding flooding concerns
- Best-in-class pure carbon coating for metallic bipolar plates for PEM fuel cells
- Exceeds Department of Energy benchmark requirements by significant margins
- Commercialized on formed SUS316, SUS304 and Titanium substrates
- Unique coating technology enables carbon coating with properties of diamond and graphite
Specifications
- Substrate: SUS304
- Thickness: 400 nm
- Water Contact Angle: 60-90°
- ICR pre-test (mΩ*cm²): ≤2
- ICR post-test (mΩ*cm²): <5
- Corrosion current (A/cm²): <0.1
- Ion leaching (PPB): <50
*Test conditions: ICR was done at 0.6MPa; corrosion test parameters are variable (please contact the vendor for more details)
Application areas
- PEM fuel cell metallic bipolar plate
Use cases
- Sydrogen currently supplies into top fuel cell automotive OEMs and fuel cell stack makers in the Chinese market
Contact us
- Sydrogen Energy is a deep tech solutions provider specializing in the hydrogen industry. Interested? Contact Sydrogen Energy by filling in the contact vendor form or RFQ form.