MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541125563 A) filed by Manjunath Krishnappa; Sneha Puranam Rajashekhar; Prahlad N. Tengli; and Nitte Meenakshi Institute Of Technology, Nitte, Bangalore, Karnataka, on Dec. 12, 2025, for 'proton exchange membranes for electrolysis of water and fuel cell applications.'
Inventor(s) include Manjunath Krishnappa; Sneha Puranam Rajashekhar; Prahlad N. Tengli; and Nitte Meenakshi Institute Technology, Nitte.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The invention provides a dual-layer composite proton-exchange membrane engineered for seawater electrolysis, acidic electrolysis, and fuel cell systems. The membrane comprises (i) a SPEEK-modified graphene oxide proton-conducting layer cast onto a nonwoven mesh substrate, and (ii) an epichlorohydrin-activated cellulose acetate selective layer formed uniformly on the surface. This hybrid configuration enhances proton transport while restricting chloride permeation, delivering stable performance in chloride-rich and chemically aggressive environments. The SPEEK-MrGO layer is produced through controlled sulphonation under inert conditions and dispersion of modified graphene oxide via ultrasonic processing, generating a nanostructured matrix with improved mechanical integrity and proton mobility. The activated CA top layer increases surface hydrophobicity, fouling resistance, and interface adhesion. The dual-layer system offers improved anti-chloride attack behaviour, reduced swelling, higher ion selectivity, and extended service life compared to conventional membranes. The membrane is suited for large-scale hydrogen generation from seawater, offshore hydrogen platforms, coastal desalination-linked electrolysers, and fuel cell applications in remote or marine energy systems."
Disclaimer: Curated by HT Syndication.
