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

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.

Donut Lab solid-state battery retest by Finland’s VTT shows capacity rising to 110% at 80C, but weight data is still missing.

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

In today’s electronics applications, batteries power nearly all our portable electronic devices. Batteries also serve as emergency power backup systems on large premises. Plus, all-electric vehicles ...

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

Wearable devices are often exposed to environmental variables that can significantly impact temperature readings. A smartwatch sits on the wrist, where ambient air temperature, sunlight, and even wind ...

When testing cells, temperature can influence many of the cell properties. Therefore, when connecting a cell to a piece of cell test equipment, along with connecting voltage sense leads and ...

The Pyros-3GT2-DWB from Farsens S.L., San Sebastián, Spain, is a battery free RFID sensor tag capable of transmitting a unique identifier and the associated temperature measurement data to a ...