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Publication No: IN202411022675 [India] Application No: IN202411022675
Title: A porous titanium current collector for water electrolysers and a 3D printing method for the preparation thereof
Publication Date: 17-10-2025 File Date: 22-03-2024
Inventor(s): Chinnaiah Jeyabharathi; Rajendran Malini; Subramanyan Vasudevan; Singaram Vengatesan; Subbiah Ravichandran; Ramachandran Sekar; Deepak K Pattanayak
IPC Classification: C25B1/04, H01M8/0247, B33Y70/00, H01M8/0232, B33Y80/00
Abstract:
Water electrolysers produce high-purity green hydrogen using renewable energy. Their efficiency and cost depend on advanced materials like porous current collectors  (CCs), which distribute current uniformly across electrodes and effectively expel product gases. Traditional fabrication methods like sintering and plasma spraying are  prone to surface oxidation and defects, limiting performance. This invention introduces a 3D-printed porous titanium CC with robust structure and controlled pore  geometry, addressing these challenges. The novel fabrication method enables customization of pore size and design, enhancing the CC's mechanical integrity and  performance in proton exchange membrane (PEM) electrolysers. Evaluations of the electrolyser stack reveal stable, high efficiency, demonstrating the suitability of this  advanced CC for hydrogen production and the broader hydrogen economy.
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