Future Car Battery Cell Production - BMW Cell Manufacturing Competence Center
Summary
TLDRThe BMW Group's Manufacturing Competence Center in Parsdorf showcases the production of the next-generation battery cells for their Gen 6 vehicles. The pilot line features a comprehensive process, starting with mixing active materials to create a slurry, followed by coating thin foils with the mixture and removing solvents through drying. The innovative round cell design enhances the vehicle's range by 30% and accelerates charging times. Key steps include calendaring, cutting, and coiling electrodes into a jelly roll, culminating in a thorough quality check during cell assembly. This initiative sets new standards for e-mobility.
Takeaways
- π The BMW Group is producing the future battery in a pilot line located in Parsdorf.
- π The round cell is designed for the Gen 6 vehicles of the Noya Classic, showcasing advancements in e-mobility.
- π₯ Around 15,000 participants are involved in simulating large-scale battery cell production.
- π¬ The battery cell production begins with dosing and mixing various active materials, solvents, and binders to create a slurry.
- πΌοΈ Copper and aluminum foils are coated with the slurry to form the anode and cathode in a continuous process.
- π₯ A 25-meter long drying section removes solvents from the coated foils across various temperature zones.
- β‘ The round cell design allows for a 30% increase in range and faster charging times.
- π The calendaring process compacts the foils using rollers to maximize the energy content of the battery.
- π The electrodes are cut into strips and rolled into a 'jelly roll' with a separator.
- βοΈ In the cell assembly phase, the jelly rolls are inserted into the housing and sealed, followed by quality checks in the formation phase.
Q & A
What is being produced at the BMW Group's cell manufacturing competence center in Parsdorf?
-The center is producing the battery of the future for the Gen 6 vehicles.
How many project participants are involved in simulating the production of battery cells?
-Approximately 15,000 project participants are involved in the simulation.
What are the key components mixed to form the slurry in electrode manufacturing?
-The slurry is formed by mixing various active materials, solvents, and binders.
What materials are used for the carrier foils in the coating process?
-Copper is used for the anode and aluminum is used for the cathode as carrier foils.
What is the purpose of the 25-meter-long drying section?
-The drying section is used to remove the solvent from the substrate in various temperature zones.
What advantage does the round cell design provide?
-The round cell design offers a 30% increase in range and faster charging times.
What happens during the calendaring process?
-During calendaring, the foils are compacted by several pairs of rollers to maximize energy content.
How is the jelly roll formed?
-The coated electrode roll is cut into six strips and rolled up together with the separator to form the jelly roll.
What steps are involved in the cell assembly process?
-The assembly involves smoothing the arrestor foils, inserting them into the cell housing, and sealing the assembly.
What quality checks do the cells undergo after assembly?
-After assembly, the cells are transported to the formation stage, where they are loaded for the first time and checked for quality.
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