Tesla Battery Day
Battery expert: Tesla batteries mean quantum leap in charging power
Imago Images / Xinhua Battery expert: Tesla batteries mean quantum leap in charging power
The battery renovations, the Tesla boss Elon Musk in the long-awaited "Battery Day" presented by the electric car maker, should enable significantly higher charging capacity in the next few years. A German battery expert is sure of this.
German carmakers still store many work steps in the development of electric cars to suppliers. Often only individual core components such as the engine are produced in your own house.With electric car pioneer Tesla, on the other hand, everything is done yourself if possible. This applies to both research, in which, according to battery expert Maximilian Fichtner, Germany does not have to hide, as well as to the production of electric cars, where the expert in Germany is currently still Hapert.
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Fichtner is the director at the Helmholtz Institute Ulm, professor of solid-state chemistry at the University of Ulm and scientific director of the "Center for Electrochemical Energy Storage Ulm-Karlsruhe" (Celest), one of the largest research platforms in the battery range. His well -founded opinion is in the days after Teslas sensational "Battery Day" in great demand.
No other car manufacturer would dare to do new cell design on Tesla
In an interview, he summarizes the difference between the traditional car manufacturers and Tesla as follows compared to the German news portal Spiegel Online: "You try to build an electric car with proven methods that is equivalent to Tesla, only with better body gap dimensions. Tesla, on the other hand, reaches a lead through technology by dealing with the entire production chain, from integrating its own hardware and software to batteries to the finished car."
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Now I have Tesla at the long -awaited "Battery Day" an unusual cell design presented that no other car maker would tackle this way. This is a new round cell in Tesla’s battery packs that work without a flag.
So far there are round cells in Tesla batteries in which "an rolled -up metal foil with a paste on it" is stuck that represents the actual memory material. At the end of the roll there is a small tab, over which the entire loading and discharge current flows along the winding. "Tesla has now managed to connect this role across and make the tabs unnecessary", Fichtner continues.
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This in turn makes the way for the current much shorter and enables Tesla to increase the size of the cell-from the approximate size of a flashlight battery to the size of a beer can. "That would actually not make a manufacturer, otherwise the heat will not get out of the cell when it comes to quick charging", explains the battery expert. "Due to the design without a tab and the shorter paths, the resistance is lower, there is hardly any heat generated."
Tesla has the "Run screws in the right direction" turned
The new design changes everything: "The format alone makes 16 to 18 percent higher ranges possible, at the same time a system can be loaded up to six times faster. This is a quantum leap", Fichtner is sure.
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Six times faster loading times and a massively increased range at cheaper prices: Even if Tesla misses the self -inserted brands of 54 percent more range and 56 percent lower costs by many percentage points and only achieves 30 or 40 percent more range and lower costs "a lot, based on an almost conventional battery chemistry.""Elon Musk has scheduled everywhere, from processing the raw materials to the finished car to make his cars better and cheaper", Fichtner is impressed. "Tesla apparently managed to turn both adjusting screws in the right direction. Even if the company only reaches a fraction of the announced growth, this is still well above what the competition is planning in this country."This article was written by Tobias Stahl
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