The startup touted a production-ready breakthrough in solid-state battery tech, but the claims collapsed under scrutiny.

A detailed investigation confirms Donut Lab's 'solid-state' battery is actually a lithium-ion cell, with over 20 experts and ...

Solid-state lithium-ion batteries promise to revolutionize the electric-vehicle world. These energy-storage systems offer numerous – and significant – benefits over conventional designs. Solid-state ...

Although we all suspected that Donut La's solid-state battery claims were too good to be true, a thorough investigation shows ...

Groundbreaking new battery designs are lasting longer and using power more efficiently than ever. But that hasn't stopped researchers from trying to push the boundaries of capability, or create new ...

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Somer G. Anderson is CPA, doctor of accounting, and an ...