Film coating and packaging device and method for pole piece large coil of lithium ion battery

Abstract

The invention provides a film coating and packaging device and a method for a pole piece large coil of a lithium ion battery. The film coating and packaging device comprises a U-shaped framework, wherein the U-shaped framework is arranged on a bottom plate, the top ends of the U-shaped framework are connected by a guide plate, a press plate is arranged above the guide plate, and is connected with a knife holder, and a cutting knife is fixedly arranged on the knife holder; brackets are symmetrically and fixedly arranged at the two side walls of the U-shaped framework, and are used for fixing a battery pole piece large coil, a pearl wool large coil and a preserving film large coil; a clamp is fixedly arranged at the top end of each bracket and is used for clamping a fixed coil shaft. The film coating and packaging device has the advantages that the pressing damage of the pole piece surface due to direct placing of the electrode pole piece large coil on plane for packaging, and the possible slipping of the packaging pole coil shaft of common turnover frame is avoided; the operation method of pole piece large coil packaging is simplified; the operation is safe and simple, the material is saved, the packaging material can be controlled, the external connection of electricity, gas and energy source is not needed, the consumption is zero, and the like.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a film-coated packaging device and a method for large rolls of lithium-ion battery pole pieces. Background technique [0002] The pole piece required in the production of lithium-ion batteries is to transfer the large roll of the produced pole piece to coat the battery material. During the transfer process, the moisture, dust and particles in the air will pollute the pole piece, thus As a result, the quality of the processed batteries also has adverse effects, and some may even cause flatulence and short circuits inside the battery. Therefore, the large rolls of battery pole pieces produced must be film-coated and packaged in a dry and clean environment before transshipment to isolate the air and the moisture, dust and other sundries in it. [0003] Since the average weight of a large battery pole piece roll is 20-30kg, and the surface of the pole piece cannot be...

AI Technical Summary

Problems solved by technology

At present, the large electrode rolls are mainly packaged on the turnover frame with film coating, but because there is no clamping device for fixing the support shaft of the pole roll, the support shaft may slip during the rotation process; Before packaging, it is necessary to prepare materials elsewhere, which is easy to cause pollution of packaging materials

In addition, when cutting packaging materials and tapes, employees need to hold the blade to operate, which is prone to work-related injuries, and the blade is small and easy to lose

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