Yep, it’s fast: Donut Lab’s solid-state battery gets its first test result
The Verge
February 23, 2026
AI-Generated Deep Dive Summary
Finnish startup Donut Lab has faced skepticism since announcing its solid-state battery breakthrough earlier this year. Critics questioned whether the company could produce a fast-charging, large-scale battery without running into the same issues that have plagued previous attempts. To address these doubts, Donut Lab released independent test results from the VTT Technical Research Centre of Finland, which evaluated the battery's charging speed and thermal behavior. The findings suggest the battery performs competitively with traditional lithium-ion alternatives, offering a promising solution to长期以来困扰固态电池技术的生产和稳定性难题.
The test revealed that Donut Lab's solid-state battery can achieve rapid charging while maintaining stable temperatures, a critical factor for long-term reliability. This advancement is particularly significant because thermal management has historically been a major hurdle in scaling up solid-state battery production. By demonstrating both fast-charging capabilities and thermal stability, the startup aims to prove its technology is not only innovative but also practical for consumer use.
The significance of Donut Lab's achievement lies in its potential to disrupt the battery industry. Solid-state batteries are widely seen as a game-changer due to their higher energy density, safety, and ability to support faster charging. If successful at scale, this technology could revolutionize devices ranging from smartphones to electric vehicles, offering a safer and more efficient alternative to current lithium-ion batteries.
While the test results are promising, Donut Lab's next steps will involve scaling production and ensuring consistent performance across larger manufacturing volumes. The company's progress underscores the growing potential of solid-state battery technology, which could finally bring faster charging and longer-lasting batteries to mainstream markets. This development is particularly exciting for tech enthusiasts and industries reliant on advanced battery solutions.
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Originally published on The Verge on 2/23/2026