economyDevelopingUpdated 3 h ago · since 24 Sept 2026

Intertek tests Donut Lab's solid-state battery and finds lithium content at 3.4 ppm in samples provided by Donut Lab

According to IT Home, Intertek's Wilton, UK laboratory tested a Donut Lab solid-state battery using samples provided by Donut Lab after disassembly, finding 3.4 ppm lithium and testing only two elements. The company says it is not lithium-ion or sodium-ion, CEO Marko Lehtimäki states, and no mass-production model has been launched since CES in January.

1 source1 country1 article1 independent outletsSource strength 22/100 ⓘDonut LabIntertek
Intertek tests Donut Lab's solid-state battery and finds lithium content at 3.4 ppm in samples provided by Donut Lab
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Key facts

  1. 01Intertek's Wilton, UK laboratory conducted the test on Donut Lab's solid-state battery.
  2. 02Samples totaled about 0.5 grams and were digested with nitric acid for analysis.
  3. 03Analysis used ICP-OES to measure elements after digestion.
  4. 04The battery is claimed not to be lithium-ion or sodium-ion, per Marko Lehtimäki.
  5. 05No production-model vehicle has launched since CES in January.

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