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 ...

The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, according to its first independent test. The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, ...

Donut Lab released its second independent solid-state battery test result Monday. The pouch cell was subjected to extreme temperatures as high as 212 degrees Fahrenheit. It appeared to perform well at ...

The startup's third test evaluates whether its solid-state battery is actually a supercapacitor. Here's what the results say. Finnish startup Donut Lab released its third independent test result ...

Donut Lab surprised everyone when it announced at CES 2026 that it's ready to ship the first commercial solid-state battery. The startup made incredible claims, including about longevity (100,000 ...

Donut Lab says it will release independent lab tests on its production-ready solid-state batteries over the next several weeks. Skepticism abounds after the company announced at CES that it had a ...

Donut Lab released the fifth independent test of its solid-state battery, this time proving the safety of its 26-Ah cell. While the tests concluded that the cell is safe, Donut Lab still refused to ...

Solid-state batteries spark a global EV arms race as automakers and startups compete to unlock ultra-fast charging and the holy grail of electric mobility. Solid-state batteries have entered a global ...

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 ...

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 ...

The company claims its new battery could lead to electric cars with a real-world driving range of over 800 miles and a theoretical range of more than 930 miles. Introducing a game-changing technology ...

Finnish startup Donut Lab released its third independent test result Monday, the latest in a series of weekly rollouts related to what it claims is the world's first production-ready all-solid-state ...