The world’s first solid-state battery, announced by Donut Lab, has sparked interest for its potential advancements over traditional lithium-ion technology. While marketed as a breakthrough in energy ...

Donut Lab’s solid-state, lithium-free battery has undergone a second round of independent testing, revealing both promising results and critical gaps. Conducted by Finland’s VTT research center, the ...

During CES 2026, Donut Lab claimed it had built a solid-state battery that promised unprecedented energy density, longevity, and charging performance. Skeptics demolished Donut Lab's claims, but the ...

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 ...

Donut Lab released a new test showing its solid-state EV battery retained 97.7% charge after 10 days, aiming to prove critics wrong who claimed it wasn’t a real battery. Donut Lab released a new test ...

Donut Lab has released its third independent test report from VTT, the Finnish Technical Research Centre, and it confirms another claim: the solid-state battery retains 97.7% of its charged capacity ...

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 ...