Solid-state batteries just went into mass production. The line makes 6,000 packs a year
THE SO WHAT
ProLogium moving 381 Wh/kg solid-state cells into 6,000-pack annual production — with a 0.8 GWh European plant staged for 2028 — shifts solid-state from lab slide to supply-chain planning. OEMs and fleet operators should start modeling scenarios where higher-density packs are constrained by line capacity, not chemistry readiness.
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