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