Battery cell appearance defect detection apparatus and detection device

A battery cell appearance defect detection apparatus, comprising:

• a first detection assembly comprising a first image collector and a first light source, wherein the first light source emits first light toward a detection surface of a battery cell, the first light being adapted to pass through an outer film of the battery cell, and the first light forming a first included angle with the detection surface, and the first image collector collects a first image of the position on the battery cell irradiated by the first light;
• a second detection assembly comprising a second image collector and a second light source, wherein the second light source emits second light toward the detection surface, the second light forming a second included angle with the detection surface, and the second image collector collects a second image of the position on the battery cell irradiated by the second light, with the second included angle being less than the first included angle;
• and
• a control assembly connected respectively with the first image collector and the second image collector, the control assembly being constructed to detect appearance defects of the battery cell according to the first image and the second image, wherein the appearance defects comprise defects between the outer film and a shell of the battery cell and defects on the outer film.