A sealing device and method for lithium-ion battery cells

Abstract

This invention relates to the field of testing technology, and more particularly to a sealing device and method for lithium-ion battery cells. The technical solution includes a conveying chamber fixedly installed on a gantry frame. Contact strips are slidably connected vertically inside the conveying chamber. An airbag is fixedly installed inside the conveying chamber, located directly above it. Multiple contact strips are arranged in a straight line along the conveying chamber, with adjacent contact strips contacting each other. An air pipe connects to the top of the airbag. This invention compresses the airbag with the top surface of the lithium-ion battery, causing gas inside the airbag to enter a first telescopic airbag. The larger the top area of ​​the lithium-ion battery, the more gas enters the first telescopic airbag. The extension of the first telescopic airbag causes a toothed plate to rotate a pressure regulating knob, thereby changing the air pressure of the air pump in the air pump dispensing unit. This allows for adjustment of the amount of encapsulating adhesive when sealing lithium-ion batteries with different top areas, ensuring complete coverage of the lithium-ion battery.

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