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

Solid-state batteries have long been the white whale of electric vehicles, promising lighter packs, faster charging and road-trip ranges that make gasoline look outdated. What is changing now is not ...

The race to reinvent the electric vehicle battery just crossed a line that had existed mostly in lab demos and investor decks. A small Finnish outfit, Donut Lab, says it has moved solid-state cells ...

Imagine an electric vehicle that charges in minutes, travels hundreds of miles on a single charge, and eliminates the risk of battery fires. This is the promise of solid-state batteries, a technology ...