They have already been debunked as very likely a scam.
They bought a company who claimed to have developed the technology.
It looks like they invented that story so someone would buy them.
The physics is all wrong on the charging cycle they are reporting.
As of February 2026, the “Donut Lab” solid-state battery has been widely accused by industry experts and battery manufacturers of being a scam or a “hoax” due to improbable performance claims and a lack of transparent, independent verification.
The Finnish company, linked to Verge Motorcycles, claimed at CES 2026 to have developed a “miracle” solid-state battery, but experts have highlighted numerous red flags surrounding the announcement.
Key Evidence and Red Flags
Unrealistic Performance Metrics: Donut Lab claims its batteries feature 400 Wh/kg energy density, 5-minute charge times (0-80% in 4.5 minutes), and a lifespan of 100,000 cycles. These figures far exceed current technology and are considered impossible to achieve simultaneously.
“Empty Case” at CES: Reports indicate that during the reveal, the company did not showcase a working prototype but rather empty battery cases.
Contradictory Data: Yang Hongxin, chairman of Chinese battery maker Svolt, labeled the claims a “scam,” stating that the parameters are contradictory and that such a battery does not exist in the world.
Lack of Peer Review: There have been no published scientific papers or patent disclosures related to their claimed battery chemistry.
Suspicious Test Results: Initial third-party test results (VTT) showed that while the cell could fast-charge, it behaved more like a high-performance lithium-ion cell or a supercapacitor under extreme stress, rather than a breakthrough solid-state battery.
Questionable Background: The company has very little history (founded ~2024) and minimal technical staff compared to industry giants, prompting comparisons to the Theranos fraud case.