Monolithic cells chipping length ≤2mm, depth ≤1mm; number ≤1 months; can not have a V-shaped and zigzag chipping; the same component allows up to four.
A single battery piece missing angle length is less than or equal to 2mm, depth is less than or equal to 1 mm; number is less than or equal to 1; no lack of V type and zigzag angle; the same component allows up to 4.