A cutting device for lithium-ion battery diaphragm that is convenient for quick cutting

Abstract

The invention relates to the technical field of diaphragm cutting, in particular to a cutting device for lithium-ion battery diaphragm that is convenient for rapid cutting, including a shearing machine, a cutting device, a collecting device and an anti-wrinkle device, and a groove is provided on the front end of the shearing machine , the inner side of the groove is fixedly connected with a fixed box, the inner side of the fixed box is fixedly connected with a cutting device, the rear end side wall of the groove is provided with a film outlet, and the bottom end of the front end of the shearing machine is fixedly connected with a The collection device and the controller are arranged on the left and right, and the inside of the collection device is fixedly connected with an anti-wrinkle device. In the present invention, through the collection device provided, this arrangement cooperates with the position guidance of the auxiliary block for the diaphragm and the rotation of the drum, so that the The cut-off diaphragm is transported into the collection box, thereby realizing the centralized collection of the diaphragm and avoiding the external environment from polluting the diaphragm.

Description

technical field [0001] The invention relates to the technical field of diaphragm cutting, in particular to a cutting device for a lithium-ion battery diaphragm that is convenient for rapid cutting. Background technique [0002] In the structure of lithium batteries, the diaphragm is one of the key inner components. The performance of the diaphragm determines the interface structure, internal resistance, etc. of the battery, which directly affects the capacity, cycle and safety performance of the battery. A diaphragm with excellent performance is of great importance to improve the performance of the battery. The comprehensive performance of the separator plays an important role. The main function of the separator is to separate the positive and negative electrodes of the battery to prevent short circuit caused by contact between the two electrodes. With the increase of people's demand for batteries, battery processing plants are also increasing, but some processing There will...

AI Technical Summary

Problems solved by technology

[0002] In the structure of lithium batteries, the diaphragm is one of the key inner components. The performance of the diaphragm determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. The comprehensive performance of the separator plays an important role. The main function of the separator is to separate the positive and negative electrodes of the battery to prevent short circuit caused by contact between the two electrodes. As people's demand for batteries increases, battery processing plants are also increasing, but some processing There will be some problems in the production process of the factory, such as the cutting work of the lithium battery diaphragm, and the cutting equipment used by some factories will have some shortcomings in the cutting work. Therefore, for a lithium ion battery diaphragm that is easy to cut off quickly The growing demand for equipment

[0003] Some cutting equipment currently used in the field of lithium battery production are performing cutting work. When the cutting knife becomes blunt, due to the large contact area between the blade and the diaphragm, it is prone to incomplete cutting of the diaphragm, which will also cause the diaphragm to fold. Some cutting devices do not collect the diaphragm in a centralized manner, and the cut diaphragm is scattered everywhere. Not only is it not easy to collect, but it is also easy to cause the diaphragm to fall and be contaminated with dust, and the surface of the diaphragm to wrinkle. Therefore, in view of the above problems, a convenient and fast Cutting equipment for cut Li-ion battery separators

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