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Process modeling of the calendering of energy-rich electrodes (ProKal)

Fördergeber: BMBF

Contact person : Alexander Diener

Zusammenfassung des Gesamtprojektes:

Within the research network ProZell, sponsored by the BMBF, the project ProKal focuses on the calendering of electrodes for the production of lithium-ion battery cells. The compaction and thus the increasing of the volumetric energy density generates the pore structure of the electrodes coating, which is decisive for the electrochemical performance. Too low porosities result in limitations of the ionic conductivity. Therefore, the objective is to develop models describing the interactions between process and product parameters regarding the generated structure and quality of the product as well as the process costs.

Fig.: Calendering line GKL 400 of the BLB

Objectives and tasks of the iPAT

  • Production of energy-rich NCM622 cathodes with high mass loadings including the use of conductive and pore additives
  • Investigation of the compaction process of the NCM622 cathodes as well as Si-graphite anodes in the calender by process variation to enhance the productivity and further processing
  • Analysis of the properties regarding further processing and generated electrode structure in connection with the resulting electrochemical performance
  • Combination of cathodes and anodes with most promising structures to cells with maximal, volumetric energy density
  • Development of machine process structure properties models and process cost function for the calendering process of lithium ion electrodes
    Project partners

    WWU Münster: MEET battery research center, TU München: institute for machine tools and industrial management (iwb)

    Team Members


    Cooperative project: Project results database and communication management for the battery cell production cluster ProZell (EMKoZell) more

    BaSS – BatterieSicherheitsStandardisierung more

    eKoZell – Environmental and Cost Assessment, Model and Communication Management for the Competence Cluster ProZell – Accompanying Project to the ProZell Cluster (eKoZell) moremore

    Cooperative project: Project results database and communication management for the battery cell production cluster ProZell (EMKoZell) more

    EVOLi²S – Evaluation of the technical and economic advantages of the open-cell module for lithium-ion and lithium-sulphur batteries with regard to stationary and mobile applications more

    Optimal electrode structure and density by design of mixing and calendering procedures (MiKal) more

    MultiDis – Multiscale approach for the description of carbon black deagglomeration in the dispersion process for a process and performance-optimized process control more

    ÖkoTroP – Ecologically gentle dry coating of battery electrodes with optimized electrode structure more

    PräLi – Prelithiation of electrodes more

    ProfiStruk – Process and system development for the process integrated inline structuring of Li-electrodes more

    Process modeling of the calendering of energy-rich electrodes (ProKal) more

    Roll-It more

    LiPlanet – Li-ion cell pilot lines network moremore

    LoCoTroP – Low cost dry coating of battery electrodes for energy efficient and environmentally friendly production processes more

    Sim4Pro- Digitalization Platform – Simulations for battery cell production more

    ZiLsicher – Zink-Air-Accumulators as safe electrochemical storage for low emission and explosion proof industrial applications more

    Finished Projects
    BenchBatt – Process based energy optimization and validation of Lithium-Ion and Lithium-Sulfur battery electrodes more

    GEENI – Graduate Program for Energy Storage and Electromobility more

    INSIDER – metal free Dual Ion energy storage technology utilizing anionic -intercalation more

    Academic Initiative for e-Mobility – Education and Training in the University Network MOBIL4e more

    ProLiEMo – Production Research for High-Power Lithium-Ion Batteries for Electro Mobility  mehr

    Functional Materials and Material Analysis for High Power Lithium-Ion Batteries more

    LithoRec – LithoRec – Recycling of Lithium Ion Batteries mehr