Battery cell aging equipment and aging control method

Abstract

The invention discloses battery cell aging equipment and an aging control method. The battery cell aging equipment comprises a rotating base body and a battery cell placing box, and the battery cell placing box is arranged at a non-rotating-center position on the rotating base body; the battery cell aging equipment further comprises a battery cell carrier, wherein the battery cell carrier comprises a battery cell body bearing part and a bag body bearing part which are used for respectively bearing the battery cell body and the bag body of the aged battery cell; the battery cell body bearing part is fixedly arranged in a battery cell placing box, and the battery cell placing box is arranged on the rotating base body in a manner that the bag body bearing part faces the inner side of the rotating base body; and the battery cell carrier further comprises a bag body driving mechanism for driving the bag body bearing part to be flattened or folded back by a certain angle relative to the battery cell body bearing part. The aging time of the battery cell can be shortened, the manufacturing period of the battery cell is shortened, the production efficiency is improved, the electrolyte absorption efficiency of the pole piece is improved, the liquid injection amount of the battery cell is reduced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of manufacturing lithium-ion batteries, and in particular relates to a device for aging lithium-ion batteries after liquid injection and a corresponding aging control method. Background technique [0002] Aging is an important process after the cell is injected, that is, after the cell is injected, the electrolyte will fully infiltrate the pole piece and the separator. The aging effect will directly determine the performance of the cell. At this stage, the aging method adopted by most battery manufacturers is to let the battery cell stand still for dozens of hours at a certain temperature, and let the electrolyte in the battery cell slowly infiltrate the cell pole piece, although this can also achieve The basic purpose of cell aging is that the electrolyte can fully infiltrate the winding core, but a longer aging time reduces production efficiency, prolongs the production cycle of the battery, and increases ...

AI Technical Summary

Problems solved by technology

At this stage, the aging method adopted by most battery manufacturers is to let the battery cell stand still for dozens of hours at a certain temperature, and let the electrolyte in the battery cell slowly infiltrate the cell pole piece, although this can also achieve The basic purpose of cell aging is that the electrolyte can fully infiltrate the winding core, but a longer aging time reduces production efficiency, prolongs the production cycle of the battery, and increases the cost of the entire production process

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