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Tesla’s Four Million Mile Battery

Tesla’s research partner may have just developed the ultimate battery.

Will Lockett
Published in
6 min readJun 10, 2022

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A recent study let slip a secret Tesla has been keeping quiet for four-and-a-half years. The truth is, behind closed doors they have been developing a battery that is lightyears ahead of anything that currently exists, with durability that can last a hundred years, or four million miles, without needing to be replaced! Not to mention the fact it could lead to significantly lighter battery packs. So how have they achieved this? And could you soon buy a four million mile Tesla?

Before diving into this battery, we first need to understand why battery degradation is a problem.

At face value EVs seem to have shrugged off the battery degradation issue. After all, Tesla offers a 150,000-mile 8-year battery warranty, but there are two problems. Firstly, plenty of cars go well over 150,000 miles during their lifetime, and to replace a Tesla battery costs up to $22,000! So with today’s tech you can’t buy a useable high-mileage electric car without forking out tonnes for a new battery. Secondly, EVs are now being used for other applications, such as trucks and vehicle-to-grid (V2G). Both of these applications required the battery pack to survive far longer. Trucks can easily do over a million miles during their lifetime and V2G

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Will Lockett
Predict

Independent journalist covering global politics, climate change and technology. Get articles early at www.planetearthandbeyond.co