The present disclosure relates to a battery cell tray, which is a tray configured to accommodate a plurality of cylinder type battery cells in a storage of a first packaging member, including a first tray member having a plate type structure in which a plurality of first recessed portions surrounding one side end portions of the battery cells are formed; and a second tray member having a plate type structure in which a plurality of second recessed portions surrounding the other side end portions facing the one side end portions of the battery cells are formed, and the first and second tray members includes a volatile rust inhibitor which is vaporized at room temperature to form a rust-proofing film on surfaces of the battery cells.