Electrek

Donut Lab solid-state battery: 5 independent tests in, still no energy density or cycle life data

Donut Lab has released five VTT test reports on its solid-state battery, but none address the 400 Wh/kg energy density or 100 ...
autoevolution

Donut Lab Shows Safety Test Results for Its Solid-State Battery, Still No Energy Density Proof

Notably, a previous test conducted by the state-owned VTT Technical Research Center of Finland proved that Donut Lab's cell ...

What’s going on with Donut Lab's so-called super battery?

Donut Lab's cell wasn’t just solid state, however. It claimed it was made from cheap and easily available materials, would ...
autoevolution

Independent Testing Shows Donut Lab's Fast-Charging Solid-State Battery Works Reliably at High Temps

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 ...