Electrolysis stacks

Development and production of alkaline pressure electrolysis stacks

EBZ Group alkaline pressure electrolysis stacks provide the optimum conditions for cost-effective production of green hydrogen on an industrial scale.

By specializing in the manufacture and development of alkaline pressure electrolysis stacks, we are able to manufacture a stack tailored to your requirements. The know-how we already have from areas such as tool and plant construction also enables EBZ to produce electrolyzers in series and with consistently high quality. EBZ possesses expertise in chemistry, metallurgy and plastics technology for this purpose.

3D modell electrolysis system

The electrolysis stack is primarily distinguished by the following properties:

High energy efficiency: This is ensured through features such as highly functional catalytic active coatings.
High hydrogen output: With a rated power of 0.5 MW, hydrogen output can be up to 100 Nm³/h.
Robustness: Stacks with a long service life are a prerequisite of the hydrogen industry
High-pressure electrolysis: hydrogen production at a pressure of 30 bar(g) enhances efficiency and reduces additional investment costs of downstream compressors for hydrogen storage.
Modularity: Thanks to a modular structure, compact EBZ electrolysis stacks can be designed for large-scale projects.
Safety: Certification to the highest safety standards and acceptance by the TÜV Süd technical inspection association.

Innovative and robust design

Our electrolysis stack impresses through its sophisticated and robust design, as this ensures a long service life and easy installation. The stack can be assembled efficiently, thanks to the reduced number of components, and this enables reliable series production.

We place our faith in the proven technology of alkaline electrolysis (AEL), but in a completely new form. Integration of the latest innovations, such as electrode design or the cellular frame sealing concept, has created an electrolysis stack which combines efficiency, maintenance-friendliness, and an extraordinarily long service life.

Our optimized stack structure enables us to service the electrolysis stack with particular ease. The modular construction and low number of individual components ensures rapid access to relevant components, minimizing downtimes and reducing operating costs.

Through the targeted use of high-quality, sturdy, and corrosion-resistant materials, we ensure that our electrolysis stack achieves a long service life, even under demanding conditions.

A key component of this technological advance is the patented cellular frame design which combines several functions in a single, innovative component. The cellular frame facilitates reliable sealing of the electrolysis stack up to a pressure of 30 bar and, additionally, also conveys the lye to the electrodes. Simultaneously, the cellular frame design ensures the safe and separate discharge of hydrogen and oxygen. In contrast to conventional solutions, the cellular frame functions without separate sealing rings during all these functions.

In addition, the pressure-bearing shell of the electrolysis stack is constructed with solid stainless steel. The conscious decision to use solid material instead of coated materials indicates a targeted goal of achieving robustness and a maximum stack lifespan.

Efficient hydrogen production through innovative electrode coating

Our electrode package sets new standards in hydrogen production. Through a specially developed, highly active catalytic electrode coating, we maximize the reaction surface and optimize electrocatalytic processes.

One decisive advantage of our coating is that we can completely dispense with platinum group metals. In addition to contributing to the sustainability and cost-effectiveness of our electrolyzer, this means it requires no critical raw materials. The coating of our electrolysis stack was developed by EBZ and applied in Ravensburg, Germany. As a result, we can guarantee consistently high quality.

Thanks to our technologically advanced coating, we achieve outstanding energy efficiency, and hydrogen production is achieved with minimum consumption of energy. This facilitates the efficient generation of green hydrogen while conserving resources.