By Nanofilm Technologies International Limited
SydroDIAMOND® is a bipolar plate coating developed using our proprietary FCVA technology. It forms an ultra-smooth and ultra-dense carbon coating on the metallic surface, helping strengthen corrosion protection while maintaining the conductivity required for efficient fuel cell operation. This coating structure allows the bipolar plate to continue performing both its protective and electrical functions under demanding operating conditions. For PEM fuel cell applications, this balance is essential. A coating must not only shield the metal surface, but also ensure consistent electrical performance over time. In ZBT-validated testing, SydroDIAMOND® has demonstrated: - Up to 9× lower ion leaching than PVD gold, helping reduce contamination risk within PEM fuel cell stacks. - More than 20,000 hours of durability, supporting reliable, long-term fuel cell operation and improved lifecycle economics. Together, these results translate directly into business impact. Lower ion leaching helps reduce contamination risk and supports more stable stack performance, while extended durability contributes to longer system lifetimes and lower lifecycle costs. For manufacturers, this means greater confidence in bipolar plate reliability, improved efficiency over time and reduced operational risk as hydrogen systems scale. That is how SydroDIAMOND® helps bridge hydrogen cost parity pressure with stronger bipolar plate durability, conductivity and scalable PEM fuel cell performance.
