US EditionThis Company Claims a Battery Breakthrough. Now They Need to Prove It.
9 Articles
9 Articles
This company claims a battery breakthrough. Now they need to prove it.
When a company claims to have created what’s essentially the holy grail of batteries, there are bound to be some questions. Interest has been swirling since Donut Lab, a Finnish company, announced last month that it had a new solid-state battery technology, one that was ready for large-scale production. The company said its batteries can charge super-fast and have a high energy density that would translate to ultra-long-range EVs. What’s more, i…
Many companies have tried to commercialize the same technology that appears to be behind Donut Lab's battery promises.
Investor letters obtained by Yle show that battery company Donut Lab is being marketed with questionable claims.
The start of the year in the world of electric mobility has been somewhat driven by the Finnish company Donut Lab, which during CES 2026, held in Las Vegas, presented a solid-state battery that was to be commercialized during the first half of the year. There were many voices that rose, saying that something like this was not possible, and to answer them it has now presented the first independent test data on its battery. The first is to review …
How fast can Donut Lab's new EV battery charge?
Five minutes to 80 percent: the claim and its meaning A Finnish start up, Donut Lab, published independent test results showing a new solid‑state battery designed for electric vehicles can reach 80 percent state of charge in roughly five minutes. If sustained in real world cars, that charging…
Donut Lab Solid-State Battery Claim Challenged After VTT Lab Findings
The world’s first solid-state battery, announced by Donut Lab, has sparked interest for its potential advancements over traditional lithium-ion technology. While marketed as a breakthrough in energy density, safety, and charging speed, independent testing by Finland’s VTT Research Institute, and as analyzed by Ziroth below, suggests otherwise. VTT’s findings reveal a 298 Wh/kg energy density, […] The post Donut Lab Solid-State Battery Claim Chal…
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