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

Earlier this year, Finnish startup Donut Lab grabbed headlines after claiming it had developed the first production-ready solid-state EV battery capable of charging in about five minutes. The ...

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.

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

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

As the electric vehicle (EV) market surges towards 2040, fueled by strong consumer enthusiasm, the need to address key concerns about EV range, reliability, and battery life has become critical.

When it comes to formulating and testing battery materials, developers have a lot of options. While this may sound like a good thing, it also means that these teams must manage “multidimensional ...

A battery test shows iPhone 17 gains are real but modest, with eSIM-only models likely lasting longer thanks to larger ...

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.