Short testing apparatus and checking method for deformation of electrode-tab using the short testing apparatus

摘要

The short measuring device of the present invention is a short measuring device that detects whether a short circuit has occurred in the unit cell by applying a current to an electrode tab of a unit cell. Short meter; A second short meter contacting the other side of the electrode tab so that a current for short measurement flows; A first thickness meter coupled to the first short meter; And a second thickness measuring device coupled to the second short measuring device, wherein when the first short measuring device and the second short measuring device are in contact with the electrode tab, the first thickness measuring device and the second thickness measuring device interlock to the electrode tab. It is characterized by measuring the thickness of. The method for inspecting the occurrence of deformation of an electrode tab due to bending or folding of the electrode tab of the present invention comprises the steps of: contacting the electrode tabs at opposite sides of the first and second short measuring devices; Measuring a thickness of an electrode tab by a first thickness meter coupled to the first short meter and a second thickness meter coupled to the second short meter; And determining that the bending or folding has occurred when the measured thickness of the electrode tab is thicker than the predetermined thickness.