Tool and method for preventing bare electric core from shifting during soft package packaging

Abstract

The invention discloses a method for preventing bare electric cores from shifting when packaged in a soft package. The first step is to put the bare electric cores into a limiting groove, and then insert the tabs into the tab slots to fix them. The second step is to place the tabs The pressure plate is pressed on the tab and the bare cell, and the tab and the bare cell are fixed at the same time, and then the aluminum-plastic film is folded to the pin to fix it. The third step is to press the cell pressure plate on the aluminum-plastic film covered On the bare cell, withdraw the lug pressure plate from under the aluminum-plastic film, and finally start the top-bottom packaging according to the standard process. The invention also discloses a tool for preventing the bare electric core from shifting when the soft package is packaged. The invention increases the tooling for fixing the displacement of the bare electric core, prevents the shift of the position of the electric core, thereby avoids damage and breakage of tabs, hollowing of the electric core, and defects such as wrinkles and penetrations in the package, and effectively improves the battery life in a low-cost manner. The quality and yield of pouch batteries have been improved.

Description

technical field [0001] The invention relates to the technical field of soft-pack lithium battery packaging, in particular to a tool and method for preventing bare cells from shifting during soft-pack packaging. Background technique [0002] Soft pack lithium battery is the third generation of power lithium battery developed on the basis of the original steel case, aluminum case and plastic case battery. It is lighter, thinner, long cycle life, good safety performance, high energy density, and discharge It has the advantages of stable platform, excellent power performance, environmental protection and no pollution, and is widely used in electric bicycles, electric motorcycles, electric vehicles, electric tools, electric toys, solar photovoltaic power generation systems, wind power generation systems, mobile communication base stations, large server backup UPS Power supply, emergency lighting, portable mobile power supply and mine safety equipment and other fields. [0003] T...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the fact that the top and bottom seals in the prior art directly use the tabs to fix the bare cells, and the cells are likely to shift under the pulling action of the aluminum-plastic film, forming a shear force on the tab foil, which is likely to cause extreme Ear breakage and damage, and the displacement causes the cell to be empty, which affects the heat conduction of the cell in the module. Provide a tooling and method to prevent the displacement of the bare cell when packaged in a soft package, and increase the fixation when using the top and bottom seals The shifting tooling of the bare cell prevents the position of the cell from shifting, thereby avoiding damage and breakage of tabs, hollowing of the cell, wrinkles and penetration of the package, and effectively improves the quality of the pouch battery at a low cost. quality and yield

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