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© EODev
Trade fair innovation

Hydrogen as an alternative to diesel generators on construction sites

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A hydrogen generator powered by a Toyota fuel cell and a new battery storage system are intended to replace diesel generators on construction sites. French manufacturer EODev presented both solutions for the first time in Germany at the Bauma trade fair.

© Christian Machens
HAZOP analysis with AI support

A revolution from Germany

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In the year 1999, Christian Machens developed the world's first fuel cell boat, the Hydra, and thereby laid the foundation for innovations that will extend far into the future. Now, 25 years later, he is once again setting standards in the technology landscape – this time with a world first that has the potential to fundamentally change the safety analysis of systems.

© Klaus Vollrath
Insights into a rapidly developing technology

High-speed micro-milling of very hard steels for bipolar plates

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Extremely high demands are placed on tools for punching, stamping and forming sheet metals. In some cases, accuracies of between 1 µm and 2 µm are required during manufacturing. The level of challenge increases drastically the larger the tool and the thinner the sheet. The stamping plates for the sheet-metal parts in fuel cell bipolar plates are a prime example. Bipolar plates are thin structures made from welded sheet-metal half shells that enclose the filigree flow fields. They are built up one after another in many layers, with the membrane electrode assemblies sandwiched in between, to produce the final stack.