Donut Lab released the third independent test of its controversial solid-state battery, this time trying to prove it's not a ...

Donut Lab solid-state battery retest by Finland’s VTT shows capacity rising to 110% at 80C, but weight data is still missing.

VTT testing says Donut Lab’s “solid-state” battery likely matches lithium-ion; energy density measured at 298 Wh/kg, claims ...

Donut Lab released the results of the second independent test showing that its solid-state battery can handle extreme heat without affecting its performance ...

The Donut Lab solid-state battery was heated to the boiling point of water. Here’s what happened next.

The battery world is hardly lacking in ambition, but it remains controlled by a tight circle of Chinese and Korean heavyweights. When Finnish startup Donut Lab claimed earlier this year that it had ...