• Transportation News Electric Cars Yep, it’s fast: Donut Lab’s solid-state battery gets its first test result The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, according to its first independent test. • The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, according to its first independent test. • Link Share Gift Since announcing earlier this year that it was onthe cusp of a major battery breakthrough, Finnish startup Donut Lab has faced a lot of questions, and plenty of skepticism, about its production-ready, solid-state battery. • Could the company really make a fast-charging battery at scale while avoiding some of the theoretical production headaches that have stymied past efforts? • Today, Donut Lab sought to dispel some of the doubts with the release of the first independent test of its battery, evaluating its charging speed and the “thermal behavior” of its pack. • The test, which was conducted by state-owned VTT Technical Research Centre of Finland, concludes that the battery is able to be charged significantly faster than a traditional lithium-ion battery.
Article Summaries:
- Finnish startup Donut Lab announced that its production‑ready solid‑state battery passed its first independent test, conducted by VTT Technical Research Centre. The pack charged from 0 % to 80 % in under five minutes-achieving 4.5 minutes in one trial and 9.5 minutes in another-while retaining 99-100 % of its capacity. Tests used passive aluminium cooling, showing the battery can handle high C‑rates (up to 11C) without the heavy liquid‑cooling systems typical of lithium‑ion packs. The results suggest the technology could reduce EV charging times from 30-40 minutes to about five minutes, potentially easing range‑anxiety concerns.
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