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

Volkswagen’s partner, Gotion High Tech, has begun testing all-solid-state EV batteries with a CLTC range of 1,000 km (620 ...

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

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 industry has touted the solid-state battery as a solution, as it promises higher energy density, faster charging, and far ...

Donut Lab battery validation adds a 10-day room-temperature retention figure of 97.7%, while energy density and weight data remain absent.

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, ...

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

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

In February 2026, the solid-state battery industry accelerated its transition from pilot-scale trials to mass production, with sulphide electrolytes becoming the primary technological focus, and the ...

Solid-state batteries spark a global EV arms race as automakers and startups compete to unlock ultra-fast charging and the ...

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 ...