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

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.

According to the tests, Donut Lab’s solid-state cell, dubbed the Donut Battery, charged from zero to 80% in just four and a ...

In February 2026, the solid-state battery industry accelerated its transition from pilot-scale trials to mass production, with sulphide electrolytes becoming the primary technological focus, and the ...

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 ...

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

Independent testing shows Donut Lab’s solid-state battery survives extreme heat and retains performance at temperatures up to 100°C.

During testing, the solid-state cell sustained an 11C charging rate. The battery reached 80 percent charge in 4.5 minutes and ...

VTT testing says Donut Lab’s “solid-state” battery likely matches lithium-ion; energy density measured at 298 Wh/kg, claims ...

Independent high-temperature testing suggests the Donut Battery doesn’t just survive extreme heat, it improves efficiency — ...

QuantumScape (NasdaqGS:QS) has integrated its Cobra separator process into solid state battery cell production. The company has shipped advanced QSE-5 cell samples to external parties for evaluation.