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.

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

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

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 ...

Donut Lab released the results of the second independent test showing that its solid-state battery can handle extreme heat without affecting its performance ...

The Donut Lab solid-state battery was heated to the boiling point of water. Here’s what happened next.

As SSDs become increasingly common in data centers and consumer PC setups, we've seen more questions regarding which SSDs are truly reliable (and under what test conditions). When we last visited this ...

Glyph's rugged, handsome Atom EX20 external 3.2x2 USB SSD proved very fast -- but only after I switched to a higher-quality cable.

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

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 ...