These new battery cell tests resemble those that will be utilized in the models of the Neue Klasse from 2025 onwards.
“With the Cell Manufacturing Competence Centre, we are strengthening Germany’s capacity for innovation,” explained Milan Nedeljković, member of the Board of Management of BMW AG, responsible for Production. “In this way, we are making an important contribution to the quantum leap in technology in the Neue Klasse.”
“Production of battery cell samples in Parsdorf marks the next logical step in our battery cell strategy,” said Frank Weber, member of the Board of Management of BMW AG, responsible for Development. “The Cell Manufacturing Competence Centre is the perfect complement to our existing Battery Cell Competence Centre in the north of Munich. Development takes place there, then we scale the best product towards a series process in Parsdorf. Thanks to cross-divisional collaboration, we are able to link product and process in a unique way.”
The CMCC in Parsdorf will empower the BMW Gathering to traverse the entire cell esteem creation process. With this expertise, the organization is setting benchmarks for creation, quality, execution, costs and natural norms, which it is carrying out in close participation with its accomplices for standard creation of battery cells. At its battery cell capability focuses in Munich and Parsdorf, the BMW Gathering is deliberately chasing after future achievements, for example, the increase of the 6th era of BMW electric drive trains and advancement of all-strong state batteries (ASSB).
How the cell is made: Creation ventures for test fabricating at the CMCC
Cell fabricating starts with terminal creation. Here the base material, containing, for instance, graphite for the anode and nickel oxides for the cathode, with covers and solvents, is metered and blended in an unequivocally estimated proportion. This makes the alleged ‘slurry’ – and that implies slender metal foils are covered and afterward compacted subsequent to drying. In specialized language, this is alluded to as ‘calendering’.
The most elevated level of accuracy is required: The foil is only a couple of micrometers thick – at the end of the day, more slender than the strings of a cobweb, while the covering is in the micrometer range. During cell gathering, the covered foils, alluded to as calendered cathodes, are twisted into purported ‘jam rolls’ utilizing the separator and embedded into the phone lodging. The cells are loaded up with electrolyte, then, at that point, charged interestingly lastly checked for usefulness and quality.
6th gen BMW battery tech: New cell design and upgraded cell science
The battery cell is answerable for electric vehicles’ center properties: range, driving execution and charging time. With the new BMW round cell uncommonly intended for the electric design of the Neue Klasse models, it will be feasible to essentially expand the scope of the top model by up to 30 percent (as indicated by WLTP).
The new BMW round cells accompany a standard measurement of 46 millimeters and two unique levels of 95 millimeters and 120 millimeters. Contrasted with the kaleidoscopic cells of the fifth BMW battery cell age, the nickel content of the 6th era BMW round cells will be higher on the cathode side, while the cobalt content will be decreased. On the anode side, the silicon content will be expanded. Subsequently, the cell’s volumetric energy thickness will work on by in excess of 20%.
Battery, drive train and charging innovation in the Neue Klasse will have a higher voltage of 800 volts. In addition to other things, this will enhance how energy is provided to coordinate current high-power charging stations, which can accomplish a lot higher accusing limit of a current of up to 500 amperes – consequently lessening the time it takes to charge from ten to 80 percent by up to 30 percent.
The BMW Gathering states that it is especially centered around keeping the carbon impression and asset utilization of creation as low as could be expected, beginning in the production network. For standard creation of battery cells, the cell makers dispatched will utilize cobalt, lithium and nickel containing auxiliary material. Along with the responsibility by its cell providers to involve just green power from sustainable power sources underway, the BMW Gathering will decrease the carbon impression from battery cell creation by up to 60 percent, contrasted with the ongoing age of battery cells.