604
Donut Lab's miracle battery found to be a fraud, investigation claims
(interestingengineering.com)
this post was submitted on 09 Jun 2026
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Technology
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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.