Lithium battery plastic-aluminum membrane packaging machine having on-line insulation detection function

Abstract

The invention discloses a lithium battery plastic-aluminum membrane packaging machine having an on-line insulation detection function. While working, an upper seal head pedestal drives an upper seal head and a first insulation support for downward movement, a lower seal head pedestal drives a lower head and a second insulation support for upward movement, the upper seal head and the lower seal head perform heat sealing on a plastic-aluminum membrane at side of a lithium battery, a first conductive probe is connected with an anode tab on the lithium battery, a second conductive probe is connected with a cathode tab on the lithium battery, a third conductive probe stabs into the plastic-aluminum membrane and is connected with an aluminium layer, a first insulation resistance test instrument is used for detecting short circuit in the lithium battery, and a second insulation resistance test instrument is used for detecting whether short circuit is happened on the aluminium layer and the cathode tab in the lithium battery or not. The lithium battery plastic-aluminum membrane packaging machine can package the plastic-aluminum membrane of the lithium battery and has on-line insulation detection function, the detection is convenient and practical, insulation testes cost on the lithium battery through artificial work after packaging is reduced, misjudgment probability is reduced, and the work efficiency is increased.

Description

[technical field] [0001] The invention relates to a lithium battery aluminum-plastic film packaging machine with the function of on-line insulation detection. [Background technique] [0002] Compared with other types of batteries such as lead-acid and nickel-cadmium, lithium-ion batteries have the advantages of large capacity, high operating voltage, fast charging speed, wide operating temperature range, long cycle life, small size, and light weight. At present, lithium-ion batteries have been widely used in mobile phones, notebook computers, electric tools and other fields, and their application range is becoming wider and wider. [0003] At present, lithium-ion batteries are most widely packaged in aluminum-plastic film flexible packaging. Soft-packed lithium batteries have great advantages over batteries with other packaging structures. After the battery is charged, the aluminum layer is corroded, so in the production process of flexible packaging lithium batteries, seve...

AI Technical Summary

Problems solved by technology

[0003] At present, lithium-ion batteries are most widely packaged in aluminum-plastic film flexible packaging. Soft-packed lithium batteries have great advantages over batteries with other packaging structures. After the battery is charged, the aluminum layer is corroded, so in the production process of flexible packaging lithium batteries, several procedures will be added to detect whether the aluminum-plastic film is short-circuited with the negative tab. At the same time, another defect of lithium-ion batteries is internal short circuit. , the burrs on the positive and negative pole pieces of the battery, dust and defects on the separator will cause internal short circuits, so the internal inspection process is also required to pick out defective products

Most soft-pack lithium-ion battery manufacturers will set up a manual inspection process for short-circuiting between the aluminum-plastic film and the negative electrode tab and the internal short-circuit of the battery after the battery top-sealing process. The responsibility of the staff and the staff is high, and there are often many defective products that have not been detected

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