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

Here at Backpacker, we’ve always relied on expert field-testing for our gear reviews. But sometimes, we want to really nerd out over data. Which rain shell can withstand a downpour? And do any of them ...

Lithium-ion batteries with liquid electrolytes are more susceptible to extreme heat. If a liquid battery gets too hot, the liquid can vaporize and catch fire — a process called thermal runaway. And at ...

The big reveal at CES of a production-ready solid-state battery needs backup.