A polymer soft package lithium battery extrusion vacuum system and its vacuum process

Abstract

The invention relates to a polymer soft package lithium battery extrusion vacuum system and its vacuum pumping process, comprising a support base plate, a smoothing device and an extracting device, the smoothing device is installed on the top of the right end of the support base plate, and the extracting device Installed on the top of the outer end of the support base plate; the smoothing device includes a smoothing side plate, a smoothing electric slider, a smoothing support plate, a smoothing mechanism, a smoothing sliding plate and a smoothing push rod; the described The smoothing mechanism comprises a smoothing fixed post, a smoothing telescopic post, a telescopic post push rod, a smoothing correction plate, a smoothing suction plate, a smoothing suction cup, a smoothing air pump and a smoothing trachea. The invention can solve the problems that the aluminum-plastic film shakes during cutting when the existing soft-packed lithium battery is vacuum-treated, the vacuum tube needs to be manually inserted into the aluminum-plastic film, and the aluminum-plastic film leaks when it is pumped. .

Description

Technical field [0001] The invention relates to the technical field of lithium battery production, in particular to a polymer soft-packed lithium battery extrusion vacuum system and a vacuum vacuum process. Background technique [0002] In the production of polymer soft-pack lithium batteries, the battery core and electrolyte need to be chemically processed after being packaged by aluminum-plastic film. After the soft-pack battery is formed, the aluminum-plastic film will be caused by the battery core and electrolyte. The chemical reaction produces a certain amount of gas. These gases are generally concentrated in the space reserved by the aluminum-plastic film. The gas in the soft pack battery needs to be extracted to make the soft pack battery in a state of close to vacuum. The vacuum processing is generally carried out in a semi-automated manner. The existing problems in the vacuum processing of soft-pack lithium batteries are as follows. The aluminum-plastic film on the soft-...

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Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a polymer soft pack lithium battery extrusion vacuum system and its vacuum pumping process, which can solve the problem that the existing soft pack lithium battery will shake when cutting the aluminum-plastic film during vacuum treatment , It is necessary to manually insert the vacuum tube into the aluminum-plastic film, and the aluminum-plastic film will leak when pumping air; it can realize the function of vacuuming the aluminum-plastic film at the right end of the pouch battery, and has the function of cutting the aluminum-plastic film. There will be no shaking, the vacuum tube is automatically inserted into the aluminum-plastic film, and the aluminum-plastic film will not leak when pumping air, etc.

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