Summary
The SEGIWA project stands for "Series Production of Electrolyzers in the Gigawatt Range" and, as a scale-up project within the H2Giga technology platform, is intended to develop the basis for transferring Siemens Energy's Silyzer 300® technology from manual production to series production in the gigawatt range.
In line with the national hydrogen strategy, the aim is to enable a low-friction market ramp-up. Important aspects are the process-technological production steps, as well as the stability of the electrolyser components, in particular the membrane-electrode arrangement. These will be characterized in detail using electrochemical methods and alternative production steps and materials will be investigated.
The AVT.CVT makes significant contributions to the alternative manufacturing steps planned in SEGIWA and the use of alternative materials in the production of the core element of the electrolyzer, the membrane electrode assemblies (MEAs).
Based on the knowledge gained, the manufacturing steps of MEA production are optimized for series production. This is done in close cooperation with the project partners (SE, RWTH WZL, Heraeus, Hahn-Schickard and LIKAT).
Electra provides the necessary infrastructure for this. The slot die coating system provided by Electra is used to produce electrode areas. These can each be produced with a width of 2.5, 5, 10 and 20 cm, allowing scale-up. Subsequently, the catalyst layers are transferred to membranes by a decal process using the hot press procured by Electra, thus producing the MEAs.
