Batteries are the sinews of war in electric cars. If the components gain in longevity and performance, they end up degrading over time. Tesla researchers have discovered a new process that could allow batteries to last… 100 years!
Tesla’s Canada-based Advanced Battery Research Center may have made a breakthrough discovery. The lab, which works hand in hand with Dalhousie University in Halifax, published an article in the Journal of the Electrochemical Society in which it describes a new way to extend the life of battery cells.
The ideal battery?
Without going into the technical details incomprehensible to ordinary mortals, this method concerns battery chemistry based on nickel and manganese (NMC). It is a question of competing with the LFP (lithium-iron-phosphate) cells of the on-board batteries of the Tesla in the field of longevity. While maintaining the popular properties of LFP batteries, including high energy density.
The research group explains that the new cell has a lifespan of a century if the temperature remains at 25 degrees. “NMC cells, especially those balanced and charged at 3.8 V, exhibit better coulombic efficiency, less capacitance loss, and higher energy density compared to LFP cells,” reads the article.
It is not tomorrow the day before that this type of cells and this chemistry will appear in Tesla’s batteries, because there is a whole industrial tool to be implemented. However, the automaker will certainly take a close interest in this discovery. This is all the more so as the problem of recycling batteries that have reached the end of their useful life will become very acute in the years to come.