Lithium ion battery extrusion test auxiliary device

Abstract

The invention discloses a lithium ion battery extrusion test auxiliary device, which comprises a bottom plate, wherein a movable plate is arranged on the left side of the bottom plate, a fixed plate is arranged on the right side of the bottom plate, the fixed plate is arranged on the bottom plate by means of a first fixing bolt, and a first limiting groove is formed in the left side of the fixed plate; a moving through groove is formed in the moving plate; the movable plate is arranged on the bottom plate, and a second fixing bolt penetrates through the movable through groove to be connected with the bottom plate; a second limiting groove is formed in the left side of the moving plate; the movable plate and the fixed plate are respectively connected with a plurality of height limiting jigs; limiting lugs matched with the first limiting groove and the second limiting groove are arranged at the bottom parts of the height limiting jigs; and depressions matched with the limiting lugs are formed in the surfaces of the height limiting jigs. The lithium ion battery extrusion test auxiliary device is simple in structure, can control the limiting height by adjusting the number of layers ofthe height limiting jigs, and makes up for the situation that voltage narrow-face extrusion cannot be achieved in part of vertical extrusion equipment in PSE narrow-face extrusion testing.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to an auxiliary device for extrusion testing of lithium ion batteries. Background technique [0002] For the extrusion project test equipment of the national standard configuration laboratory, it is impossible to achieve a fixed range, and the extrusion test is performed on the direction of the narrow surface of the battery cell. In the process of testing the safety performance of the battery cell, it is necessary to meet the requirements of the squeeze test in the PSE standard for the direction of the narrow surface of the battery cell; however, the development of automatic equipment with a fixed range and a fixed direction of the battery cell is expensive, and in the existing On the basis of the equipment, a simple auxiliary fixture is developed to fulfill the requirements of the PSE narrow surface extrusion test on the equipment. Contents of the invention [0003...

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Problems solved by technology

[0002] For the extrusion project test equipment of the national standard configuration laboratory, the fixed range cannot be realized, and the extrusion test is carried out on the direction of the narrow surface of the cell

In the process of testing the safety performance of the battery cell, it is necessary to meet the requirements of the squeeze test in the PSE standard for the direction of the narrow surface of the battery cell; however, the development of automatic equipment with a fixed range and a fixed direction of the battery cell is expensive, and in the existing On the basis of the equipment, a simple auxiliary fixture was developed to fulfill the requirements of the PSE narrow surface extrusion test on the equipment

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