Since announcing earlier this year that it was on the cusp of a major battery breakthrough, Finnish startup Donut Lab has faced a lot of questions, and plenty of skepticism, about its production-ready ...

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

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

The ever-changing properties during cell charging. The impact of wire-path resistance. Dealing with charger inefficiencies. When lithium-ion cell testers are being specified, the request is for a ...

Scientists can now see a hidden battery ingredient — and it could supercharge how fast and how long lithium-ion batteries ...

Researchers at the University of Oxford have developed a powerful new method to visualize an essential lithium-ion battery ...