| 摘要 |
An impact test device of a battery cell according to the present invention comprises a chamber prepared for the impact test of a battery cell and containing the battery cell therein; a guide rail part placed in the chamber; a first driving part moving up and down along the guide rail; a second driving part connected to one side of the first driving part to move up and down and pressing the battery cell; a combination part placed between the first driving part and the second driving part to combine the first driving part with the second driving part; a cylinder part for supporting the second driving part from below the second driving part lest the second driving part move toward the bottom surface of the chamber; a distance measurement part placed at one side of the second driving part to measure a distance between the second driving part and the bottom surface of the chamber; and a control part for receiving a signal from the distance measurement part and outputting a control signal for controlling the first driving part and the second driving part. The control part controls the position of the cylinder part so that the second driving part can fall toward the bottom surface of the chamber, and controls the combination part so that the second driving part can be separated from the combination part, thereby providing a method for evaluating the physical stability of the battery cell against an external shock. According to the present invention, one side of the battery cell can be pressed repeatedly, thereby improving the accuracy of reliability of the test. |
