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.

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

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

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

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

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.

Two separate Chinese efforts are touting advances in solid-state (and hybrid solid-state) electric-vehicle batteries, including test-vehicle range claims above 1,000 kilometers on a single charge. One ...

QuantumScape (NasdaqGS:QS) has integrated its Cobra separator process into solid state battery cell production. The company has shipped advanced QSE-5 cell samples to external parties for evaluation.

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 ...