tesla battery day – Impact Lab

A Tesla battery researcher showed updated test results pointing to batteries lasting over 15,000 cycles or the equivalent of over 2 million miles (3.5 million km) in an electric car.

Last year, we reported on Jeff Dahn and his lab, who is under contract to do battery research for Tesla, releasing a paper that shows how the latest Li-ion battery technology can produce batteries that would last 1 million miles in electric vehicles.

In a new presentation, Dahn discussed updated test results from this new battery, which he hopes becomes the new standard Li-ion battery against which new battery technologies benchmark themselves.

The scientist, who is widely recognized as a pioneer in Li-ion batteries, referenced our article from last year about their paper and said that it sparked a massive interest in this new battery chemistry and battery longevity.

Continue reading… “Tesla battery researcher shows new test results pointing to batteries lasting over 2 million miles”

Reportedly coming first to China

Tesla is getting ready to introduce a long rumored lower-cost, longer-lasting battery for its electric vehicles in China sometime later this year or early next year, according to a new report from Reuters. The battery — which has been colloquially called a “million mile” battery in reference to how long it can last in a car before breaking down — is being co-developed with Chinese battery giant Contemporary Amperex Technology Co. Ltd (CATL) and was designed in part by battery experts recruited by Tesla CEO Elon Musk.

Tesla is already the industry leader when it comes to squeezing range out of lithium-ion batteries in electric cars, and it’s expected to reveal more about the new technology at an upcoming “Battery Day” for investors. Musk told investors and analysts earlier this year that the information “will blow your mind. It blows my mind.” The company originally planned to hold the event in April, but has had to reschedule it until at least late May thanks to the COVID-19 pandemic. The company held a similar event focused on self-driving technology in April 2019.

Continue reading… “Tesla’s readying a ‘million mile’ battery that could greatly lower the cost of EVs”