Lamination method of pole group and lamination equipment of pole group

Abstract

The invention relates to the technical field of lithium batteries, in particular to a lamination method of a pole group and lamination equipment of the pole group. According to the lamination method,the pole group is prepared by sequentially and alternately carrying out lamination operation and detection operation. The lamination operation comprises the following steps of continuously laminatingaccording to a lamination sequence that a plurality of negative plates and a plurality of positive plates are sequentially and alternately arranged to obtain laminated pole pieces, wherein the laminated pole piece is initially a single negative pole piece, and the laminated pole piece is finally a pole group. The detection operation comprises the step of testing electrical parameters of the laminated pole pieces through a detection unit, and if a test result is normal, continuing the lamination operation, or otherwise, stopping the lamination operation. According to the lamination method of the pole group, the lamination operation and the detection operation are alternately carried out, so that each layer of pole pieces laminated on the laminated pole pieces by the lamination unit can be detected in time through the detection unit, the production efficiency of the qualified pole group is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a method for stacking pole groups and a stacking device for pole groups. Background technique [0002] At present, lithium-ion batteries have the advantages of high specific energy, many cycles, and long storage time, and have been widely used, such as electric bicycles, electric vehicles, mobile base stations, and energy storage power stations. In order to meet the power demand of electric vehicles and other equipment, lithium-ion batteries usually connect multiple battery cells in series and parallel to form a battery pack for use. [0003] However, in the actual production process of lithium-ion batteries, the battery cells obtained through mass production often fail to meet the actual requirements. After the lamination process is completed, the final pole group will be sent to the inspection process for inspection, so as to confirm whether to carry out subsequent p...

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Problems solved by technology

[0004] In view of this, the present invention aims to propose a stacking method of the pole group and a stacking device of the pole set, so as to solve the problem that the lithium-ion battery in the prior art cannot be found in the stacking process in time when the battery cells are mass-produced. Problems such as high cost and long cycle caused by unqualified products

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