this post was submitted on 09 Jun 2026
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Donut Lab's miracle battery found to be a fraud, investigation claims (interestingengineering.com)
submitted 18 hours ago by Some_Emo_Chick@lemmy.world to c/technology@lemmy.world
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[–] chaogomu@lemmy.world 33 points 16 hours ago (3 children)

The running theory I had seen was that they were licensing out someone else's tech, and then claiming it as their own.

And now this article shows that to be more true than I had thought.

Meanwhile, there's a company out of Taiwan doing this, https://www.youtube.com/watch?v=xQFVIs4leig

The guy cuts a cell in half with a pair of scissors, and as soon as the scissors are pulled away the little LED light comes back on.

[–] testaccount789@sh.itjust.works 8 points 15 hours ago (1 children)

These seem like ones tested by GreatScott 7 years ago: https://youtu.be/kJXRyWQgOY4

[–] chaogomu@lemmy.world 14 points 14 hours ago

Same company, their newest cells are based on that tech, but with 7 years of advances, so 360Wh/kg. Which is about the same as most other top end Lithium-ion batteries, just solid-state rather than a liquid electrolyte.

[–] Telorand@reddthat.com 6 points 16 hours ago

That's actually super cool, and more in line with what one might expect from the gradual progression of solid state energy storage.

(Also, I'm a layperson, so my expectations should be taken as such.)