en.Wedoany.com Reported - Evonik has commenced commercial production at its new pilot plant in Germany's Marl, primarily manufacturing anion-conducting DURAION® membranes. The plant's annual capacity can meet the membrane material required for up to 2.5 GW of electrolysis capacity, a scale Evonik says accounts for approximately one-quarter of Germany's planned total electrolysis capacity by 2030.

The DURAION® membrane features high ionic conductivity, chemical and mechanical stability, and enables reliable hydrogen/oxygen separation. It is specifically designed for high current density and high-pressure operating conditions, and is produced without the addition of PFAS. The anion exchange membrane (AEM) water electrolysis technology supported by this membrane operates in an alkaline environment, requires no precious metal components, and can more flexibly adapt to variable renewable energy power.

In its announcement, Evonik cited a techno-economic study showing that AEM water electrolysis technology can reduce investment costs by at least 25%, while eliminating the need for a separate compression step by directly pressurizing hydrogen production. The company emphasized achieving full backward integration from starting molecules to finished membrane rolls. Its coating line is approximately 20 meters long, capable of producing membrane products up to 1 meter in width, and can offer fabric-reinforced versions for large-scale systems. Some early AEM electrolyzer manufacturers have already tested DURAION® membranes in pilot and demonstration plants. Additionally, Evonik has established an AEM Center in Shanghai to test membranes produced at the Marl plant with local partners and to support the product's promotion in China and other markets.

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