AI Summary

Donut Lab announced a fully solid‑state battery at CES 2026, claiming it is the first practical production‑ready design. The company said its battery eliminates the extreme mechanical pressures that other firms, such as Quantumscape, have needed to keep cathode and electrode in contact. Donut Lab’s presentation sparked both amazement and skepticism, with critics questioning the feasibility and performance claims. The company’s reveal marks a potential shift away from semi‑solid‑state approaches that have struggled with cost and practicality.

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