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  "path": "/2026/06/08/donut-lab-solid-state-battery-exposed-lithium-ion-fraud/",
  "publishedAt": "2026-06-08T19:18:17.000Z",
  "site": "https://electrek.co",
  "tags": [
    "News",
    "battery swap",
    "more…"
  ],
  "textContent": "A comprehensive investigation by battery researcher Ziroth, involving over 20 independent battery experts, has produced what amounts to definitive proof that Donut Lab’s “miracle” solid-state battery is actually a lithium-ion cell. The company raised approximately $25 million from over 1,300 mostly small investors based on claims that now appear to be false.\n\nThe investigation traces the battery technology back to a German company called CT Coatings, reveals a web of companies hiding behind aggressive NDAs, and presents electrochemical evidence — including voltage curves and cell expansion data — that conclusively identifies the tested cell as lithium-ion, not the revolutionary sodium-ion solid-state chemistry Donut Lab promised.\n\nmore…",
  "title": "Donut Lab’s ‘solid-state’ battery exposed as regular li-ion in damning investigation"
}