Coating for Metallic Bipolar Plates – SydroDIAMOND™ 100T

by Sydrogen Energy Pte Ltd.

  • Substrate: Titanium
  • Thickness: 100 nm
  • Best-in-class pure carbon bipolar plate coatings for PEM fuel cells
  • Coating for metallic bipolar plates with unique coating technology
  • Exceeds Department of Energy benchmark requirements by significant margins
  • Customizable based on customer’s material and performance requirements
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Coating for metallic bipolar plates – SydroDIAMOND™ 100T

  • 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 SUS316 substrates but also available for SUS304 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: Titanium
  • Thickness: 100 nm
  • Water Contact Angle: 60-90°
  • ICR pre-test (mΩ*cm²): <2
  • ICR post-test (mΩ*cm²): ≤20
  • Corrosion current (A/cm²): <0.05 @0.84V

*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.
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      Sydrogen Energy Pte Ltd.

      Sydrogen Energy is a subsidiary of Singapore’s leading nanotechnology company Nanofilm Technologies group with the backing of Temasek Investment Holdings. Sydrogen offers best-in-class pure carbon bipolar plate coatings enabled by a proprietary coating technology that utilizes pure, high-energy ion deposition. Sydrogen’s coatings have been proven in the Chinese market, offering excellent interfacial contact resistance, corrosion resistance, hydrophobicity and ion-leaching inhibition properties. The pure carbon coatings have been proven on Bipolar Plate substrate such as SUS316, SUS304 and Titanium.

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