New EV Battery Gives Gasmobiles The Deep Freeze
cleantechnica.com Oct 24, 2026

New EV Battery Gives Gasmobiles The Deep Freeze

AI-summarised brief · reviewed before publication

Finnish startup Donut Lab has confirmed its solid‑state EV battery can retain 99 % of capacity at –30 °C, as reported by VTT Technical Research Centre. The battery, unveiled at CES, claims 400 Wh/kg energy density and a five‑minute full charge. VTT’s independent tests also validated performance at 100 °C, challenging doubts about the chemistry. Donut Lab’s data shows no capacity loss after prolonged exposure to extreme cold, suggesting built‑in thermal resilience without external systems.

💡 Why It Matters

  • · Demonstrating reliable performance in deep‑freeze conditions removes a key barrier for EV adoption in cold climates, potentially accelerating global electrification.