Donut Lab, a California-based startup developing solid-state battery technology, has drawn intense attention and sharp criticism over claims that its donut-shaped cells can outperform conventional ...

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

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

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

Something quietly extraordinary is happening inside research labs, factory pilot lines, and test vehicles right now. The ...

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

As part of its 'I Donut Believe' campaign, Finnish battery developer Donut Lab has published further independent test results for its disputed solid-state ...

Donut Lab revealed the first independent test showing that its solid-state battery is capable of 11C charging, although it still has to prove other claims ...

Donut Lab released independent testing of its new solid-state battery, which can charge to 80 percent in just five minutes.

Lithium-ion batteries with liquid electrolytes are more susceptible to extreme heat. If a liquid battery gets too hot, the liquid can vaporize and catch fire — a process called thermal runaway. And at ...

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

The big reveal at CES of a production-ready solid-state battery needs backup.