Donut Lab really wants us to believe its ‘miracle solid-state battery’ is real
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 elem…
Donut Lab hits 409 Wh/kg in battery lab test, but credibility is gone
Donut Lab has published a new independent test claiming its battery reached an energy density of 409 Wh/kg and 805 Wh/L, the first energy-density figure the company has put on record after months of scrutiny.
But the number lands against a promise t…