Donut Lab, a venture-backed startup operating largely in stealth mode, has presented a solid-state battery prototype that the company describes as a fundamental leap in energy storage technology. The ...

Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy density and cycle life remain untested.

Cells will start production at its Maryland facility with expected expansion as production ramps BELTSVILLE, Md., March 10, 2026 /PRNewswire/ -- ION Storage Systems, Inc. (ION) announced today the ...

Ion Storage Systems, announced on 10 March 2026 the successful customer qualification of its Cornerstone Cell performance. This marks Ion as the first US ...

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

ION Storage Systems becomes the first US solid-state battery company to achieve customer performance qualification for its Cornerstone Cell.

The Donut Lab solid-state battery was heated to the boiling point of water. Here’s what happened next.

A research team at Nankai University in Tianjin, China, claims to have tested what it describes as the world’s first semi-solid state battery to exceed 1,000 kilometers of range in a real vehicle. The ...