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

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

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

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

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 ...

As part of its 'I Donut Believe' campaign, Finnish battery developer Donut Lab has published further independent test results for its disputed solid-state ...

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

Found in Apple AirTags, the CR2032 button cell battery, also known as a coin battery, is actually surprisingly easy to test ...

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

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

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, ...