Tray for secondary batteries and jig for forming the same

Abstract

Provided are a tray for a secondary battery, which is environmentally friendly and can reduce the manufacturing cost while improving formability of the tray, and a jig for forming the tray. The tray includes a series of receiving spaces for receiving a series of cylindrical secondary batteries, and a flange portion at an outer part of the receiving space. Each receiving space includes a bottom surface configured to support one cylindrical secondary battery, a series of fixing ribs protruding upwardly from the bottom surface, and a series of bridges protruding upwardly from the bottom surface. The fixing ribs are spaced apart from each other and spaced around an outer portion of the bottom surface. Each bridge of the series of bridges connects adjacent fixing ribs.

What is claimed is: 
     
         1 . A jig for forming a tray for a secondary battery, the jig comprising:
 a lower mold made of a metal; and   an upper plug made of wood configured to mate with the lower mold,   wherein the lower mold is a relief structure.   
     
     
         2 . The jig of  claim 1 , further comprising:
 an upwardly extending protrusion in the lower mold configured to form a receiving space of the tray; and   a coupling groove in the upper plug corresponding to the upwardly extending protrusion of the lower mold.   
     
     
         3 . The jig of  claim 2 , further comprising a discharge hole extending through the upper plug at the center of the coupling groove.