Battery cell exterior inspection system

A system for inspecting battery cell exteriors, comprising:

• a tray configured to hold a plurality of battery cells to be inspected in a plurality of rows, wherein the battery cells are arranged in a two dimensional array in the tray;
• a first photographing part configured to horizontally move above the tray and photograph an exterior of an upper surface of the battery cells held in the tray;
• at least one shuttle configured to hold a row of the battery cells, wherein the row of the battery cells is arranged as a one-dimensional array in the shuttle;
• a transfer part that is structurally independent of the shuttle and configured to remove the row of the battery cells from the tray and deposit the battery cells in the shuttle;
• a second photographing part configured to photograph exteriors of a side surface and a lower surface of the row of the battery cells held in the shuttle;
• and
• an inspection part configured to inspect images photographed by the first and second photographing parts and determine whether the exterior of at least one battery cell of the plurality of battery cells is defective,
• wherein the second photographing part is configured to photograph the side surface and the lower surface of the battery cell in a single image using a single camera, wherein the single camera includes a main lens facing the lower surface of the battery cells and a plurality of reflectors within a field of view of the main lens, wherein each reflector is positioned to face a respective portion of the side surface of the battery cell such that the single image visualizes each of the lower surface and the respective portions of the side surface of the battery cell.