The Finnish firm claims it has beaten the world’s largest carmakers and battery giants to commercializing solid-state cells ...

Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy density and cycle life remain untested.

The startup's third test evaluates whether its solid-state battery is actually a supercapacitor. Here's what the results say.

CATL filed an international patent, detailing how its solid-state battery cell and electrolyte material can help overcome one ...

Donut Lab released the third independent test of its controversial solid-state battery, this time trying to prove it's not a ...

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

Donut Lab has had the world's first solid-state battery ready for production vehicles measured in independent testing ...

Earlier this year, Finnish startup Donut Lab grabbed headlines after claiming it had developed the first production-ready ...

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 ...

Finnish startup Donut Lab has just released the third independent test of its solid-state ...

Basically, VTT hooked up Donut Lab’s to a battery tester and left it idle for 10 days, while measuring the voltage every 10 seconds. According to the results, the cell demonstrated high stability, ...