English => News => Topic started by: Redaktion on June 09, 2026, 15:09:56
Title: Donut Lab's "miracle battery" said to be a conventional lithium battery
Post by: Redaktion on June 09, 2026, 15:09:56
The Finnish start-up Donut Lab wanted to change the world with a solid-state battery with extremely high energy density and a particularly long service life. This has earned the company a valuation of $1.25 billion, but doubts about the existence of the advertised battery are growing.