Skepticism grows around Donut Lab’s “impossible” battery as experts debate capacitor-like behavior and scarce independent test data.

Earlier this year, Finnish startup Donut Lab grabbed headlines after claiming it had developed the first production-ready solid-state EV battery capable of charging in about five minutes. The ...

Finnish startup Donut Lab has just released the third independent test of its solid-state ...

The startup's third test evaluates whether its solid-state battery is actually a supercapacitor. Here's what the results say.

HDC dielectric film to enable next-generation pulsed power systems for fusion energy, aerospace, aviation, and grid modernization VALLEY VIEW, Ohio, March 11, 2026 /PRNewswire/ -- Peak Nano today ...

Basically, VTT hooked up Donut Lab’s to a battery tester and left it idle for 10 days, while measuring the voltage every 10 seconds. According to the results, the cell demonstrated high stability, ...

With a Leica lens that provides one enormous camera bump, there’s no hiding the biggest selling point of the Xiaomi 17 Ultra.

Although it dates back to the early days of the Marconi Company in the 1920s, the Franklin oscillator has remained a ...

Say hello to the X430 and Q430 ...

We've been up close and personal with Michi's new family members ...

Internal failures and safety gaps led to a substation explosion in Orlando, causing injuries to workers. The investigation ...

Air conditioners become essential to maintain cooling efficiency and prevent sudden breakdowns during summers. But AC service ...