Back in April, Musk had made the ambitious claim of bringing battery packs that would power Tesla cars for more than one million miles throughout their lifespan.
The promise initially sounded like another one of Musk's hyperboles, but just recently, the battery researchers at Dalhousie University, which has an exclusive agreement with Tesla, detailed the chemistry for such a battery, suggesting otherwise.
Notably, one million miles is the double of current battery lifecycle of Tesla cars. The long service life of the battery, they said, could come particularly handy for a fleet of autonomous car and long-haul trucks, like Tesla Semi.
The paper notes that the upgraded battery loses just 10% of its energy capacity after as many as 4,000 charge-and-discharge sessions.
This is way better than the 2014 test that showed Lithium-ion battery lost 50% energy capacity after 1,000 charge-discharge sessions. But, you should note there's no word on when or if Tesla would go ahead and bring this battery into its vehicles.