VTT

Donut Lab's solid-state battery demonstrated high charge retention in independent testing, holding 97.7% of its energy over ten days, a…

A Finnish company's solid-state battery demonstrated improved performance at extreme temperatures up to 100°C, directly challenging a major weakness of…

Finnish startup Donut Lab's solid-state battery achieved an 80% charge in roughly 9.5 minutes in independent tests, a speed that…