Provided is a test jig including a jig main body having, at an end portion thereof, an insertion part into which an electrode lead is inserted and a fixing member detachably coupled to the insertion part to fix the electrode lead inserted to the insertion part, wherein the insertion part includes insertion faces outwardly extending from both end portions of the jig main body, and coupling faces extending from the insertion faces toward insides of the jig main body and brought into contact with the fixing member, and thus a tensile test is performed on an ultrasonic-welded portion of the electrode lead without an additional cell.
1. A test jig comprising:
a jig main body having, at an end portion thereof, an insertion part into which an electrode lead is inserted; and
a fixing member detachably coupled to the insertion part to fix the electrode lead inserted to the insertion part,
wherein the insertion part comprises insertion faces outwardly extending from both end portions of the jig main body, and coupling faces extending from the insertion faces toward insides of the jig main body and brought into contact with the fixing member.
2. The test jig of claim 1 , wherein the insertion face is inclined outwardly.
3. The test jig of claim 1 , wherein a guide protrusion is provided on a side portion of the fixing member, and a guide groove is provided in a sidewall of the insertion part to allow the guide protrusion to be slidably coupled thereto.
4. The test jig of claim 1 , wherein pads having a buffering force are provided on corresponding portions of the insertion part and the fixing member which face each other.
5. The test jig of claim 1 , wherein an indicating part indicating a center of the insertion face is provided on the insertion face, so as to place the electrode lead at the center of the insertion face.
6. The test jig of claim 1 , wherein a latch part for latching a rear end of the electrode lead is provided on the insertion face, and the latch part is inserted into a latch groove provided in the bottom surface of the fixing member during coupling of the fixing member.