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.

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

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

Solid-state batteries spark a global EV arms race as automakers and startups compete to unlock ultra-fast charging and the ...

Donut Lab released the results of the second independent test showing that its solid-state battery can handle extreme heat without affecting its performance ...

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

At CES, Donut Lab presented a solid-state battery allegedly ready for mass production. However, the impressive specifications ...

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 ...

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

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

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 ...