DCR test equipment

Abstract

The invention provides DCR test equipment. The DCR test equipment comprises a rack; the feeding mechanism is provided with an avoiding space and is erected in the rack; the jacking mechanism is arranged in the avoiding space; the testing mechanism is erected above the feeding mechanism; and the code scanning mechanism is erected in the rack and is used for scanning information of labels of the battery cells. And the tray and the battery cell are conveyed to a preset position above the avoiding space of the feeding mechanism and are positioned below the testing mechanism. During testing, the testing mechanism does not move, and the jacking mechanism drives the tray and the battery cell to move upwards to be connected with the testing mechanism, so that the power line does not swing randomly in the process that the testing mechanism is in contact with the battery cell on the tray, and the testing result is not influenced.

Description

【Technical field】 [0001] The invention relates to the technical field of industrialized composition capacity testing of lithium batteries, in particular to a DCR testing device. 【Background technique】 [0002] In the production process of square cells, it is necessary to use the cell conversion and composition capacity testing equipment to batch the cells into activated cells, that is, load voltage and current between the positive pole and the negative pole of the square cell, so that accurate and stable voltage and current can be achieved. Ensure that the internal activation of the cell is stable and sufficient to form a stable and virtuous cycle of electrochemical reactions; in the process of cell capacity division, that is, the cell capacity test process, the capacity division equipment accurately controls and records the current that changes with time during the charging and discharging process of the square cell. value, voltage value, according to the current-voltage-ti...

AI Technical Summary

Problems solved by technology

[0006] 1. The composition and volume DCR test equipment currently has a structure in which the needle bed moves back and forth or up and down, and the pallet is relatively stationary. Because the power line of the needle bed is too heavy and too long, the bending of the power line during the test process affects the impedance and thus affects the test results;

[0007] 2. Full-scale test of the needle bed, that is, to test the battery cells of a pallet at the same time, and test each battery cell corresponding to each power supply, resulting in more power supply boxes, larger size of the whole machine, and higher cost

[0008] 3. Overall test, if you want to reduce the number of power supply boxes, you need to use relays to switch, and the impedance of the relays will affect the test results

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