Donut Lab, a small Finnish startup claiming to have developed the first solid-state battery for electric vehicles, has released results from a new test aimed at addressing doubts about its technology.

Donut Lab’s latest solid-state battery prototype has undergone its third round of testing and the results have sparked a mix of optimism and concern. In this evaluation, the battery demonstrated 97.7% ...

Finnish startup Donut Lab has just released the third independent test of its solid-state “Donut Battery,” showing it retains 97.7 percent of its charged capacity after remaining idle for 10 days. The ...

Ever since Donut Lab unveiled its solid-state battery, experts have questioned the startup's claims. Donut Lab has commissioned an independent lab to verify that its SSB technology is real, and the ...

There was speculation that Donut Lab’s battery was able to discharge energy so quickly because it was a supercapacitor in disguise. So the startup set out to disprove that claim. There was speculation ...

Donut Lab has released its third independent test report from VTT, the Finnish Technical Research Centre, and it confirms another claim: the solid-state battery retains 97.7% of its charged capacity ...

Finnish startup Donut Lab is pushing back against industry skepticism by releasing new independent test data showing its solid-state battery performs unusually well in extreme heat. The results follow ...

The Finnish startup’s battery not only survived extreme heat conditions, it actually gained capacity. The Finnish startup’s battery not only survived extreme heat conditions, it actually gained ...

VTT, the Finnish state research institute, also conducted the second test series. The ‘Donut Lab Solid-State Battery V1 High Temperature Performance Test’ marks VTT’s second publication on Donut Lab’s ...

Donut Lab has released a second set of independent test results for its controversial solid-state battery — this time proving the cell can discharge at extreme temperatures up to 100°C and actually ...