Battery manufacturing equipment, battery no-cavity vacuum liquid-drawing device and battery vacuum-pumping packaging method

Abstract

The invention discloses battery manufacturing equipment, a battery no-cavity vacuum liquid-pumping device and a battery vacuum-pumping packaging method; the battery no-cavity vacuum liquid-pumping device includes a seal piercing mechanism and a seal vacuum pumping mechanism which are arranged opposite to each other, and also includes a sealing mechanism which is located near the outer side of the seal piercing mechanism and the seal vacuum pumping mechanism; the seal piercing mechanism comprises an upper sucking disc and a movable bayonet, and when in piercing, the movable bayonet penetrates the upper sucking disc to pierce a battery package body; the seal vacuum pumping mechanism comprises a lower sucking disc and a vacuum pumping tube, the lower sucking disc is provided with a vacuum suction port communicated with the vacuum pumping tube, and the orientations of openings of the upper sucking disc and the lower sucking disc are opposite to each other; and during vacuum pumping of a battery, the upper sucking disc and the lower sucking disc are respectively sealed and absorbed on local positions of two side surfaces of the battery package body. An upper sucking disc and the lower sucking disc type piercing and vacuum-pumping structure is adopted, the equipment structure is simplified, the production efficiency is improved, the production energy consumption is reduced, frequent cleaning work is avoided, and the repair and maintenance are more convenient.

Description

technical field [0001] The invention relates to the technology in the field of battery manufacturing equipment, in particular to a battery manufacturing equipment and a cavityless vacuum pumping device and a vacuum packaging method thereof. Background technique [0002] At present, in the battery production industry, in the battery production process, after the electrolyte is injected and left to stand, it is necessary to extract the excess electrolyte that has not been absorbed by the battery cell and the gas generated during the production process, and then put the aluminum plastic in a vacuum environment. The film is sealed under heat and pressure. In order to complete this process, the upper chamber, the lower chamber, and the load-bearing fixture are closed in the industry to form a large sealed chamber. Inside the chamber, there are upper and lower heads for packaging, a bayonet for piercing the aluminum-plastic film, and compressed air. The upper and lower pressure p...

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Problems solved by technology

[0003] However, although the above-mentioned existing battery vacuum structure can realize the basic vacuum packaging process in the battery production process, it is found that its own structure and performance cannot achieve the best use effect and work efficiency in actual use, and still There are many deficiencies, and the deficiencies are summarized as follows: On the one hand, the entire mechanism structure of the aforementioned large sealed cavity structure is complex and the cost is high; on the other hand, the cavity size is large, and the entire lithium battery needs to be sealed in its cavity In the body, the vacuuming time is long, the energy consumption is large, and the production efficiency is low; moreover, since its head, bayonet, pressing plate, battery positioning plate and other components are located in the large sealed cavity, after the air bag is punctured When the electrolyte is pumped by vacuum, the electrolyte will be pumped out in a spray state, and the sprayed electrolyte will pollute the cavity and its internal parts such as the head, bayonet, pressure plate, battery positioning plate, etc., so that the cavity needs to be cleaned regularly. The surface of the package is polluted and needs to be ground, cleaning and maintenance are frequent and difficult, and the maintenance cost is high

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