• Deutsch
  • English

HIPO STACK: High Power Redox Flow Stacks

Sponsor: Bundesministerium für Wirtschaft und Energie, Funding line: ZIM (Zentrales Innovationsprogramm Mittelstand)

Contact persons: Marius Tidau, Sebstian Melzig

Summary of the overall project:

The costs for redox flow batteries are to be reduced so that a new product is created by significantly improving the stack in terms of power density and costs. For this purpose, suitable flow fields are to be developed, which are then integrated into the plates via a new punching or embossing process for compound bipolar plates. As an optimal supplement to this, a novel nano-structured membrane is to be developed which has a greater proton permeability than the classic ion-selective membranes and can be produced much more cost-effectively. The new membrane is coated to achieve a constant selectivity. Due to the possibly greater permeability of this membrane for vanadium ions and water, it can only be used sensibly if the pressure conditions in the cell can be controlled by means of optimized flow fields. This shows the close relationship between the individual components in the stack and the need to optimally match them to each other. Thus, the goal of a small-volume redox flow stack with high power density can be achieved and an important contribution to the market maturity of redox flow technology can be made.

Goals and tasks of iPAT

  • Process development and establishment for membrane production based on different substrates and ceramic coating materials
  • Development and establishment of methods for the structural and application-related characterization of ceramic membrane coatings
  • Investigation of the influence of formulation and process parameters on the membrane properties
  • Evaluation of the coated membranes in the redox flow cell
    Project partners

  • Eisenhuth GmbH & Co. KG
  • Volterion GmbH
  • Technische Universität Clausthal

  • Team Members

    Current Projects
    DEFACTO: Battery design and manufacturing optimisation through multiphysic modelling more

    HIPO STACK: High Power Redox Flow Stacks more

    Simulation based modelling of time- and shear-dependent disperse and rheological properties of cement suspensions more

    3D4Space – Additive manufacturing technologies for innovative space travel – „printing on the moon“ more

    Nanofluidics & Particle manipulation – Production and characterization of metrological, hierarchical nano- and microstructures more

    FOR 2021 “Active principles of nanoscale matrix additives for fibre reinforced lightweight structures” more

    Dynamic Process Models for Fine Grinding and Dispersing more


    Finished Projects
    Processing of nanoparticles out of poorly water-soluble drugs by precipitation and drying using microsystems more