5S
5S is a workplace organization methodology — Sort, Set in order, Shine, Standardize, Sustain — applied to keep battery production floors safe and efficient. As a hard skill it involves implementing visual controls, designated tool locations, and standardized cleaning routines to prevent foreign object debris that could short cells. Discipline in 5S directly reduces line stoppages, contamination defects in electrode handling, and time lost to misplaced tools during high-voltage assembly.