🧪 Startup's $1.25 Billion Solid-State Battery Breakthrough Exposed as Traditional Lithium-Ion 1. Finnish battery startup Donut Lab has been exposed for making false claims about its supposedly revolutionary, production-ready solid-state battery technology. 2. Independent investigations and third-party testing revealed that the company's miracle power cells actually rely on standard lithium-ion chemistry rather than next-generation solid-state materials. 3. The revelation has effectively debunked the startup's claims, raising serious questions for investors who recently valued the company at $1.25 billion. Bobbi thinks: This spectacular collapse serves as a stark reminder for climate tech investors that rigorous technical due diligence is absolutely essential in the hyper-competitive, hype-driven battery sector. Subscribe to CleanTech Pulse on Bobbi for supporting links, newsletter, and podcast.