Research Project

New Production Process Allows Megawatt Electricity Storage System

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Innovation through Cross-sector Collaboration

Thyssenkrupp Industrial Solutions has been working for some time to develop redox flow storage technology for large-scale use. The company’s know-how is mainly in the design of the electrochemical cells. The development of an improved cell design, which Thyssenkrupp has patented, recently enabled the company to put a pilot redox flow storage system with cell areas up to 0.6 m² into operation at its research and development center in Ennigerloh. The newly developed bipolar plates will also be tested here under near-service conditions to see if they are suitable for use in redox flow batteries.

Under the newly launched project to develop a production process for a new kind of bipolar plate, Eisenhuth is responsible for transferring the research results to industrial production and for manufacturing small-area bipolar plates. ZBT, supported by Eisenhuth, will select and develop materials suitable for the new production technology.

Plastics specialist Centroplast will be responsible for scaling up the bipolar plates and demonstrating the feasibility of manufacturing plates on a m² scale using the new technology. The main focus will be on the ability to manufacture defect-free, high-quality bipolar plates in a robust and reproducible process. During the development process, the research institutes ZBT and EFZN will support the manufacture of the bipolar plates by Eisenhuth and Centroplast by means of extensive material characterizations and electrochemical analyses.

Thyssenkrupp Industrial Solutions will then be responsible for integrating the newly developed bipolar plates into redox flow batteries and further optimizing the cell design with a view to large-scale applications. The joint project to produce the bipolar plates is being coordinated by Eisenhuth.