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DaLion – Data mining in the production of lithium-ion battery cells

Sponsor: BMWi

Contact :

Summary of the overall project:

Compared to other technologies with a high degree of technological maturity, battery cell production still offers considerable potential for increasing productivity and improving product properties. Corresponding starting points can be found both in the design of the battery cell and in the production processes. With regard to product and process innovations, the manufacture of electrodes and, based on this, the production of cells is of particular importance. A database in which all process parameters are systematically recorded is a means of quality assurance in order to reduce the reject rate and thus costs and energy requirements.

Fig.: The final step in the production of battery electrodes is the compression of the electrodes in a calender.

Within the framework of the project, knowledge of the interrelationships of the production of lithium-ion battery cells is to be gained. The aim is both to systematically improve the economic efficiency and environmental compatibility of battery production as a whole and to enable the targeted production of defined battery cell types and qualities. Precise knowledge of the interdependencies is crucial not only for today’s battery generations, but especially for new ones.

Goals and tasks of iPAT

  • Identify process and quality parameters in electrode production
  • Implementation of the measurement technology for process parameters in the calendering step in progress
  • Execution of variations in electrode production and adjustment with reference data set
  • Carrying out a parameter study and establishing a process structure model for calendering
  • Discrete Elements Method (DEM) Simulation of the calendering process
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    Project partners

  • Institute for Machine Tools and Manufacturing Technology (IWF), TU Braunschweig
  • Institute for Machine Tools and Production Engineering (IWF), TU Braunschweig
  • Institute for Joining and Welding Technology (ifs), TU Braunschweig
  • Institute of Energy and Process Systems Engineering (InES), TU Braunschweig
  • Institute for High Voltage Technology and Electrical Power Systems (elenia), TU Braunschweig
  • Institute of Environmental and Sustainable Chemistry (IÖNC), TU Braunschweig
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    Team Members

    Projects

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

    BaSS – BatterieSicherheitsStandardisierung more

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

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

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

    Roll-It more

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

    GEENI – Graduate Program for Energy Storage and Electromobility more

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

    LithoRec II more

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

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

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

    Finished Projects

    ProLiEMo – Produktionsforschung für Hochleistungs-Lithium-Ionen-Batterien für ElektroMobilität  mehr

    LithoRec – Recycling von Lithium-Ionen-Batterien mehr

    LiVe – Lithium-Verbundstrukturen mehr