Donut Lab really wants us to believe its ‘miracle solid-state battery’ is real

Electrek
By Fred LambertSep 23, 2026, 9:27 am84 pts
An Intertek lab in the UK found just 3.4 ppm of lithium in a sample of Donut Lab’s “solid-state” battery, and the Finnish startup is now using that result to argue its cell is neither lithium-ion nor sodium-ion. But the report measured just two elements, on a cell Donut Lab took apart itself. And nine…

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