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Donut Lab solid-state battery: 5 independent tests in, still no energy density or cycle life data

  • Electrek faviconElectrek

    By Fred LambertMar 23, 2026, 10:01 am87 ptsTrending
    photo of Donut Lab solid-state battery: 5 independent tests in, still no energy density or cycle life data imageDonut Lab has now released five independent test reports from Finland’s VTT Technical Research Centre on its solid-state battery — and not a single one addresses the two claims that actually matter: the 400 Wh/kg energy density and the 100,000-cycle life. The Q1 2026 deadline that Donut Lab set for…
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Welcome to EcoTopical Your daily eco-friendly green news aggregator.

Leaf through planet Earths environmental headlines in one convenient place. Read, share and discover the latest on ecology, science and green living from the web's most popular sites.

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