Battery pack assembly line including the process of battery cell tester-battery paper pasting machine-battery cell sorting machine-CCD tester- battery pack spot welding machine- battery pack BMS tester-battery pack integrated tester-PVC shrinking machine-code printing machine-Battery pack aging machine. Aging detection is generally the last step before the battery pack is completed，then why do lithium battery packs need aging test ？

    One is to make the electrolyte infiltration better, which is conducive to the stability of the performance of the lithium battery pack;

    Second, the active materials in the positive and negative materials can accelerate the progress of some side effects after aging, such as gas production and electrolyte decomposition, so that the electrochemical performance of the lithium battery pack can quickly stabilize;

    The third is to screen the consistency of lithium battery packs after a period of aging. After the formation, the voltage of the battery cell is unstable, and the measured value will deviate from the actual value. The voltage and internal resistance of the battery cell after aging are more stable, which is convenient for screening batteries with high consistency.

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