ExcellBattMat Projects

© istock ra2studios

In the ExcellBattMat cluster, material concepts for high-energy battery systems of the future are being researched across centers in four research projects. The projects are closely networked, and results are exchanged within the framework of a digital database. In addition, cross-center workshops intensify further cooperation. The results of the activities on the different platforms are regularly discussed with the management circle at cross-cluster status meetings.

  • ExZellTUM III

    Center of Excellence for Battery Cells at the Technical University of Munich

    Main focus:

    • Material
      • Characterization: Anode and cathode materials for next generation battery systems
      • Influence of electrolyte on cell properties, innovative cell design
    • Modelling
      • Simulation and validation of electrochemical models
      • Mechanical and thermal modelling of new materials
    • Analytics
      • Material and electrode parameterization -
      • Cell behavior (electrochemical, thermal, mechanical)
      • Neutron and X-ray methods
    • Digitalization
      • Measurement methods: Standardization across clusters
      • Development of data structures, automated evaluations
    • Partner: Technical University of Munich (EES, TEC, iwb, FRM II)

  • KaSiLi

    Structural mechanical cathode adaptation to silicon and lithium-based anode materials

    The ExcellentBattery Center Dresden focuses on innovative battery electrodes consisting of wafer-thin silicon or lithium layers to achieve high energy densities.

    Main focus:

    • Development of high-capacity Si and Li-based anodes
      • Increasing cycle stability and volumetric capacity
      • Influencing microstructure, galvanic nucleation approaches, adaptation of the electrolyte
    • Development of high-capacity oxide- and sulphur-based cathodes
      • Focus on Ni-rich NCM materials (LIB cells with Si/Li anodes)
      • S8/C as cathode system for high energy Li/S cells
    • Structural-mechanical and electrochemical adaptation for high-energy cells
      • Adaptation of all cell components and balancing of the full cells
      • Maximization of the energy density of the cell systems Li/S8, NMC/Si and NMC/Li
    • Development of cell prototypes based on Li and Si anodes
      • Model-based cell design for and construction of multilayer pouch cells
    • Partners: Fraunhofer (IWS, IKTS), University of Dresden (TUD-AC1, TU-ANW), NaMLab, Leibniz IFW

  • MEET-HiEnd III

    Materials and Components to Meet High Energy Density Batteries

    Main focus:

    • Development of liquid electrolytes (focus: LIB/LMB)
      • Main focus: Performance, safety, function (T-window, etc.)
    • Electrode formulation and structuring (LIB/LMB)
      • Inactive materials: binders/additives/current collectors
      • Material and electrode structuring, e.g. LIB, LMB, cathode composites
    • Modelling & analysis
      • Material specific aspects (e.g. thermodynamic or MC and MD simulation)
      • Focus on ageing and economic aspects
    • Technology transfer
      • Interaction with FestBatt/ProZell
      • Integration into umbrella concept: "innovation pipeline
    • Partner: WWU (MEET, HI MS, IPC, IfbM), RWTH Aachen (ISEA, HI MS, GfE), FZ Jülich (IEK-1, IEK-2, IEK-9, HI MS-IEK12)

  • ExcellBattUlm

    Description follows.