VTT Technical Research Centre Of Finland NewsLatest News On VTT Technical Research Centre Of Finland Donut Lab’s solid-state battery keeps 97.7% charge after 10 days in third test3/9/2026 12:42 PM Donut Lab shuts down scam claims as solid-state cells hit 110% capacity in extreme heat3/2/2026 4:48 PM Donut Lab’s solid-state battery hits 80% charge in 4.5 minutes, beating ‘scam’ claims2/23/2026 4:35 PM
