Lithium battery packaging machine

Abstract

The invention discloses a lithium battery packaging machine. The lithium battery packaging machine comprises a closed-loop conveying track and is characterized in that a bag feeding station, a sealing station, a bag discharging station, a plurality of vacuumizing stations and a plurality of liquid adding and exhausting stations are arranged on the closed-loop conveying track, the vacuumizing stations and the liquid adding and exhausting stations are arranged in a penetrating and inserting mode, each station is correspondingly provided with a vacuum cavity assembly, each vacuum cavity assembly is enclosed by a vacuum cavity body and a vacuum cavity cover together to form a vacuum cavity, a machine clamp assembly and an ironing head assembly are arranged in the vacuum cavity, the vacuum cavity is communicated with a vacuum gas distribution device of the packaging machine through a vacuum pipe, and a liquid adding pipe is inserted into the vacuum cavity; and when the liquid adding pipe adds an electrolyte solution into the packaging bag in the vacuum cavity at the liquid adding and exhausting station, the vacuum cavity sucks air from the outside. The lithium battery packaging machine is used for packaging a lithium battery, rapid absorption of the electrolyte solution by the lithium battery is achieved, the adding amount of the electrolyte solution is accurately controlled so as to better guarantee the quality of the lithium battery, the working efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a lithium battery packaging machine used for lithium battery packaging. Background technique [0002] A lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The lithium battery needs to be filled with a non-aqueous electrolyte during the production process. At present, the work of filling the electrolyte of the lithium battery is as follows: put the lithium battery into a packaging bag made of aluminum foil, put the packaging bag into a special mold, and add the electrolyte solution required for the lithium battery into the packaging bag at one time. Vacuumize, and finally the packaging bag is sealed. The disadvantages are: first, the absorption speed of the electrolyte solution by the lithium battery is slow, the work efficiency is low, and the production speed is slow; It is necessary to leave more margin above the sealing line,...

AI Technical Summary

Problems solved by technology

The disadvantages are: first, the absorption speed of the electrolyte solution by the lithium battery is slow, the work efficiency is low, and the production speed is slow; It is necessary to leave more margin above the sealing line, wasting packaging materials, and the packaging materials are very expensive, which increases production costs; third, the electrolyte solution is easy to overflow the packaging bag, resulting in deviations in the amount of electrolyte solution absorbed by the lithium battery, which is difficult to achieve. Guarantee the quality of lithium batteries; Fourth, lithium batteries of different specifications need to have different sizes of packaging bags, and the cycle of mold replacement is long, which affects work efficiency

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