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Donut Lab battery passes cold-weather testing by VTT

2 reports, 2 independent Updated Oct 23
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New informationRepeats or wire copies

AI-generated briefing. Brind wrote this from the reports listed below and has updated it as the story developed. It can be wrong. Each section says how much you can rely on it, and the sources are linked so you can check.

What happened

Some supportReported by 2 outlets

Donut Lab commissioned VTT Technical Research Centre of Finland to test its solid-state EV battery. VTT confirmed that the battery module retained 97 percent of its capacity after being frozen to –22 degrees F (–30 degrees C). Donut Lab had previously described the battery as ready for use in OEM vehicle manufacturing.

From cleantechnica.com, autoweek.com

Why it matters

Some supportBrind's analysis of the reports

Cold-weather operation can sharply reduce available battery energy and charging performance in electric vehicles. The successful validation of the battery's performance under extreme cold addresses a critical technical hurdle for EV adoption.

From cleantechnica.com, autoweek.com

Who's involved

  • Donut LabDeveloped the unconventional solid-state battery architecture
  • VTT Technical Research Centre of FinlandConducted the test on a 14-cell battery module under extreme cold
  • CleanTechnicaPublished the results of the independent assessment

Who could feel it

Possible knock-on effects

These are possibilities Brind reasoned out, not predictions, and not advice. Most are not stated in any report.

  • Donut LabSpeculative

    Donut Lab might see increased investment or sales demand for its battery technology because the test results validate its core performance claims.

How it developed

Newest first. Tap a step to see who reported it.
  1. VTT confirmed the battery claims made by Donut Lab.1 source
  2. Donut Lab hired VTT for testing services.1 source

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The entities involved

Coverage

Newest first; wire copies grouped