Donut Lab, a Finnish solid-state battery maker, claims its cells retained 97.7% of their charge after sitting idle for 10 days, a figure that, if independently confirmed, would represent a sharp ...

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

The development of battery materials at the University of Eastern Finland began more than a decade ago with research on anode and cathode materials. Now, with the new Battery Research Laboratory at ...

The lithium-ion battery pack sitting under millions of electric vehicles on the road right now may be approaching a shelf ...

From Monday onward, Donut Lab stirred up lots of excitement and lots of skepticism among battery experts by unveiling a production-ready, allegedly all-solid-state battery, claiming it's the first for ...

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.