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.

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

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.

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 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.

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

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

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 ...

The startup's third test evaluates whether its solid-state battery is actually a supercapacitor. Here's what the results say.