Stargate Hydrogen uses BASF’s Ultrason® for lightweight and durable frames in its Stellar electrolyzer stacks
The electrolyzer manufacturer Stargate Hydrogen, Estonia, is now using BASF’s Ultrason® to manufacture the frames in its stacks used for alkaline water electrolyzers (AWE). The polysulfone (PSU) Ultrason® S replaces metals such as nickel, resulting in significantly lighter stacks. This substitution is possible because BASF’s high-performance thermoplastic offers high temperature and chemical resistance also in harsh alkaline conditions. It can withstand high stack pressures due to excellent compression strength. As Ultrason® can be injection-molded, it provides greater design flexibility for easier functional integration than metal. The collaboration between Stargate Hydrogen and BASF has yielded an exceptional result: the pressurized stacks of the Stellar series are designed for long operational lifespans, supporting reliable hydrogen production, and reducing downtime and maintenance costs. This durability enhances the economic feasibility of green hydrogen production, making it a cost-effective solution.
