MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202541123960 A) filed by Anna University, Chennai, Tamil Nadu, on Dec. 9, 2025, for 'a process of manufacturing metallic bipolar plates for pemfc using electromagnetic forming.'
Inventor(s) include R. Mohammed Abdul Kadar; K. Shanmuga Sundaram; M. Pradeep Kumar; and S. Jeno.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a process for fabricating metallic bipolar plates used in Proton Exchange Membrane Fuel Cells (PEMFC) by employing electromagnetic forming (EMF). The method uses a single electromagnetic coil and a shaped die to form ultra-thin metallic sheets, preferably aluminium alloys, into complex flow field channel geometries. High-voltage electrical pulses in the range of 10,000V to 20,000V are discharged through a capacitor bank of 25,000 joules, generating strong Lorentz forces that deform the sheet into the die cavity in a non-contact manner. The proposed technique eliminates the need for resin-coated chambers, mechanical punches, lubrication, or chemical etching, thereby simplifying the setup and reducing manufacturing time, cost, and equipment maintenance. Precision control over channel dimensions and uniform material distribution is achieved even in ultra-thin sheets. The described process is suitable for the mass production of metallic BPPs in automotive and stationary fuel cell industries. The fabrication method contributes to the development of lightweight, compact, and corrosion-resistant components, thereby enhancing the overall efficiency and durability of PEMFC systems. A scalable, clean, and efficient approach is provided for industrial production in the green hydrogen sector."
Disclaimer: Curated by HT Syndication.
