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December 26, 2019 11:00 pm

Tesla Patents New Chemistry For Better, Longer-Lasting and Cheaper Batteries

Tesla is closing the year by filing a patent on a new chemistry for better, longer-lasting and cheaper batteries. The new patent is related to the new battery cell that Tesla's battery research partner, Jeff Dahn, and his team at Dalhousie University unveiled earlier this year. The new cell "should be able to power an electric vehicle for over [1 million miles] and last at least two decades in grid energy storage," Dahn said in a paper released at the time. Electrek reports: The automaker, through its "Tesla Motors Canada" subsidiary, filed a new international patent called "Dioxazolones and nitrile sulfites as electrolyte additives for lithium-ion batteries." They wrote in the patent application: "This disclosure covers novel battery systems with fewer operative, electrolyte additives that may be used in different energy storage applications, for example, in vehicle and grid-storage. More specifically, this disclosure includes additive electrolyte systems that enhance performance and lifetime of lithium-ion batteries, while reducing costs from other systems that rely on more or other additives." The patent application says that the new two-additive mixtures in an electrolyte solvent can be used with lithium nickel manganese cobalt compounds, also known as an NMC battery chemistry. It is commonly used in electric vehicles by many automakers, but not by Tesla. The company used the technology in its stationary energy storage systems, but it uses NCA for its vehicle battery cells. The patent filed by Tesla's battery research group mentions that the technology would be useful for both electric vehicles and grid-storage.

Read more of this story at Slashdot.


Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/eXeaTkTmneg/tesla-patents-new-chemistry-for-better-longer-lasting-and-cheaper-batteries

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