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Home
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Materials
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Coatings

Fuel Cell Coatings - Carbon

IHI Ionbond AG

  • Low cost coating for metallic bipolar plates
  • High performing carbon-based coatings
  • Protection of stainless steel bipolar plates from metal leaching
  • Corrosion resistance and durability during normal operating conditions
  • Adhesion and conductivity achieved through plasma surface cleaning

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Description Vendor

Fuel Cell - Carbon is a low-cost coating for metallic bipolar plates in fuel cells, designed to enable electrical conductivity and protect stainless steel plates from metal leaching, which can poison the membrane and reduce stack performance over time. The coating is deposited using sputter PVD technology, with plasma surface cleaning and a special metal-based adhesion layer for optimal durability and performance under various conditions, including cold starts and extreme conditions. It meets the requirements for stable, reliable performance and acceptable price performance in automotive fuel cell applications.

Use Cases

  • Fuel cell stacks for automotive applications

Capabilities

  • Enable electrical conductivity
  • Protect stainless steel bipolar plates from metal leaching
  • Withstand high voltage peaks during cold start events
IHI Ionbond AG IHI Ionbond AG, with over 50 years of experience in coating technology and part of the IHI Group alongside sister company IHI Hauzer Techno Coating, provides thin-film coating services through a global network of coating centers, with coatings used to improve durability, quality, functionality, efficiency, and aesthetics of tools and components across a portfolio including PVD, PACVD, CVD, CVA, and CVI technologies. For the hydrogen industry, Ionbond's main focus is coating bipolar plates and porous transport layers (PTLs) for PEM fuel cells and electrolyzers, working through close collaboration with customers to ensure coatings meet all technical requirements for corrosion resistance and electrical conductivity in the demanding electrochemical cell environment. Ionbond has joined forces with IHI Hauzer Techno Coating to combine technological expertise for coating development, coating service, and equipment specifically supporting PEMFC (PEM Fuel Cell) and PEMWE (PEM Water Electrolysis) applications, working together to further improve and optimize coating production processes with the goal of extending component lifespan and reducing costs for metal bipolar plates and PTLs. The collaboration between Ionbond and Hauzer reflects IHI's ongoing commitment to contributing to sustainable technologies and achieving carbon neutrality throughout its entire value chain by 2050, positioning the two coating specialists to jointly develop lifetime improvement and cost reduction solutions for the growing hydrogen fuel cell and electrolyzer manufacturing industry.
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