Mercedes is paving the way for the future of electric vehicles with their innovative battery technology. One of the key advancements they are working on is the use of multiple-chemistry battery packs that incorporate more than one type of cell. This is made possible through a new type of micro-converter and a unique setup where the battery cells are connected in parallel rather than in series.
This new approach offers several benefits for battery pack performance. By connecting the cells in parallel, Mercedes can achieve finer control over the charge going into each cell pair. This means that the vehicle can balance the charge in its cells more effectively, detect and isolate damaged cells without affecting the entire pack, and conduct more accurate battery health checks to identify any problematic cells.
The programmable micro-converter embedded in the battery pack allows for wireless control, enabling individual cell pair adjustments. This technology also ensures a constant battery pack voltage regardless of the state of charge, a significant improvement over traditional setups where voltage varies with charge levels.
Mercedes envisions a future where battery packs are more modular and space-efficient, thanks to this innovative approach. By using multiple chemistries within the same pack, such as LFP and NMC cells, the automaker can take advantage of the unique strengths of each type. LFP batteries are known for their ability to withstand regular fast charging without degradation, while NMC batteries offer higher energy storage capacity.
The possibility of combining these two chemistries in a single pack opens up new opportunities for electric vehicles. It could lead to more cost-effective and standardized battery solutions, ultimately benefiting consumers and manufacturers alike. While this technology is still in the early testing stages, the potential for improved battery performance and efficiency is promising.
In conclusion, Mercedes is at the forefront of battery innovation in the electric vehicle industry. Their experiments with multiple-chemistry battery packs and advanced micro-converter technology are setting the stage for more efficient and reliable electric vehicles in the future. By pushing the boundaries of battery technology, Mercedes is driving towards a more sustainable and electrified automotive landscape.