If the compaction density target for LFP (Lithium Iron Phosphate) cathode material — typically in the 1.4–1.6 g/cm³ range — is raised to the 2.7 g/cm³ class that L&F has disclosed as its end-2026 mass-production target, the nip pressure and line speed of the calendering (rolling) process must be redesigned, and this directly affects the takt time and OEE (Overall Equipment Effectiveness) performance factor of existing operating lines. In an assumed-scenario calculation, if the rolling speed decelerates from 40 m/min to 24 m/min, the calendering time per coil (1,200 m) increases from 1,800 s to 3,000 s, creating a bottleneck that exceeds the 2,250 s takt time by 750 s…