The Finnish firm claims it has beaten the world’s largest carmakers and battery giants to commercializing solid-state cells ...

Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy density and cycle life remain untested.

Basically, VTT hooked up Donut Lab’s to a battery tester and left it idle for 10 days, while measuring the voltage every 10 seconds. According to the results, the cell demonstrated high stability, ...

Donut Lab battery validation adds a 10-day room-temperature retention figure of 97.7%, while energy density and weight data remain absent.

VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge ...

The individual cell charged in about five minutes in an independent test. But can it do that at the pack level over many charging sessions?

Earlier this year, Finnish startup Donut Lab grabbed headlines after claiming it had developed the first production-ready ...

Donut Lab, a Finnish solid-state battery maker, claims its cells retained 97.7% of their charge after sitting idle for 10 days, a figure that, if independently confirmed, would represent a sharp ...

Finnish startup Donut Lab has just released the third independent test of its solid-state ...