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

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 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.

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

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 ...

Independent high-temperature testing suggests the Donut Battery doesn’t just survive extreme heat, it improves efficiency — potentially rewriting the rulebook on EV battery safety and performance.

Since announcing earlier this year that it was on the cusp of a major battery breakthrough, Finnish startup Donut Lab has faced a lot of questions, and plenty of skepticism, about its production-ready ...

The race to revolutionize the science of electric vehicles (EVs) is heating up. Stream Los Angeles News for free, 24/7, wherever you are. Often touted as the "holy grail" of sustainable driving, solid ...

Yun Jung Lee reflects on her path to solid-state battery research, shaped by curiosity, interdisciplinary work and focus on ...