The startup's third test evaluates whether its solid-state battery is actually a supercapacitor. Here's what the results say.
The Donut Lab solid-state battery was heated to the boiling point of water. Here’s what happened next.
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.
As part of its 'I Donut Believe' campaign, Finnish battery developer Donut Lab has published further independent test results for its disputed solid-state ...
VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge ...
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