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.

Roughly three months ago, electric motorcycle startup Verge Motorcycles announced something huge, claiming its updated Verge ...

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

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, ...

VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge ...

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

As part of its 'I Donut Believe' campaign, Finnish battery developer Donut Lab has published further independent test results for its disputed solid-state ...

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 ...

Flagship smartphones differ significantly in their battery capacities and underlying technologies. The Samsung S26 Ultra, iPhone 17 Pro Max, and Google Pixel 10 Pro XL are equipped with batteries in ...

Power outages have become increasingly common, and longer in duration, due to extreme weather and temperature events. Behind-the-meter (BTM) batteries are proving their worth, as they have become more ...

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