TESLA'S BATTERY TECH MAY SOON IMPROVE — HERE'S WHY
The Tesla battery research group, led by renowned battery boffin Jeff Dahn, has applied for a patent on a new battery cell chemistry that the company says could deliver faster charging, longer life and lower cost.
*This article comes to us courtesy of EVANNEX (which also makes aftermarket Tesla accessories). Authored by Charles Morris. The opinions expressed in these articles are not necessarily our own at InsideEVs.
Above: Tesla's Model S (Instagram: brian__self)
In the application, entitled “Novel battery systems based on two-additive electrolyte systems,” Dahn and his team explain that adding up to five different compounds to an electrolyte can improve battery performance, but they have devised a solution using only two additives, which reduces costs compared to other systems that rely on more additives.
Above: A look at why (and how) battery advances could be a game changer for Tesla (Source: Wall Street Journal)
The new two-additive mixtures can be used with lithium nickel manganese cobalt (NMC) battery chemistries. NMC chemistry is used in several EV models, but Tesla uses an NCA chemistry for its vehicle battery cells. However, Tesla does use NMC in its stationary storage batteries. According to the patent application, the new technology would be useful for both EV and grid storage applications.
Above: Jeff Dahn seated in the driver's seat of a Tesla Model S (Source: Dalhousie University News)
Electrek has published both a copy of the complete patent application and a detailed technical summary. This news coupled with Tesla's recent acquisition of Maxwell Technologies could point to forthcoming advances in battery tech for the Silicon Valley automaker.
*Editor’s Note: EVANNEX, which also sells aftermarket gear for Teslas, has kindly allowed us to share some of its content with our readers, free of charge. Our thanks go out to EVANNEX. Check out the site here.