Pole piece pressing equipment for lithium battery production

Abstract

The pole piece pressing equipment for lithium battery production comprises a bottom box, a first motor is arranged in the bottom box, a rotor shaft of the first motor penetrates out of the bottom box and is connected with a transfer disc, transfer grooves are evenly formed in the transfer disc in the circumferential direction, lithium battery pole pieces are arranged in the transfer grooves, and a supporting plate is arranged on the side of the bottom box; the bottom of the supporting plate is connected with a supporting rod, and a second motor is arranged on the supporting plate. The heating plate heats the pressing roller, the primary finished product pole pieces are scattered into the transferring groove one by one under the action of downward pressure of the pressing column and the transferring disc, in the rotating process of the transferring disc, the pressing roller rotates to be pressed on the primary finished product pole pieces in the transferring groove, all areas of the primary finished product pole pieces are pressed by the pressing roller to be in the qualified thickness, and when the primary finished product pole pieces reach the lower side of the belt conveying wheel, the belt conveying wheel rotates smoothly. The felt ring can generate frictional resistance on the pole piece, the primarily finished pole piece can be brought to the material guide piece from the left transfer groove to be discharged obliquely downwards, more materials are fed at a time, additional operation of pressing pieces is not needed, and the operation safety is high.

Description

technical field [0001] The invention belongs to the technical field of lithium battery production, and in particular relates to a pole piece pressing device for lithium battery production. Background technique [0002] Lithium battery pole pieces are made of a variety of metal foils bonded one by one with conductive mixed paste. Lithium battery pole pieces are made of different metal foils for different conductivity requirements. During the production process, the metal foils need to be cut Coating the conductive mixed slurry into a square block, and then bonding the metal foils to each other. The finished product of the pole piece can not be used directly, and it needs to be heated and compacted to ensure the metal foil. The sheets can be stuck together stably and have good electrical conductivity. Therefore, it is necessary to use the sheet pressing equipment for the sheeting operation. The existing sheeting equipment is mainly composed of a hydraulic press and a heating m...

AI Technical Summary

Problems solved by technology

[0002] Lithium battery pole pieces are made of a variety of metal foils bonded one by one with conductive mixed paste. Lithium battery pole pieces are made of different metal foils for different conductivity requirements. During the production process, the metal foils need to be cut Coating the conductive mixed slurry into a square block, and then bonding the metal foils to each other. The finished product of the pole piece can not be used directly, and it needs to be heated and compacted to ensure the metal foil. The sheets can be stuck together stably and have good electrical conductivity. Therefore, it is necessary to use the sheet pressing equipment for the sheeting operation. The existing sheeting equipment is mainly composed of a hydraulic press and a heating mold. The primary product is put into the heating In the mold, and operate the ejector pin of the hydraulic press to move down, the pressure plate set at the bottom of the ejector pin presses down to heat the initial product in the mold, under the action of heat and pressure, the metal foils are more tightly bonded to each other, and the conductive mixture The slurry can effectively fit the metal foil, but the disadvantages are: during operation, workers need to control the lifting of the hydraulic press, and only one sheet can be put into the heating mold at a time, the processing efficiency is not high, and Operational security is not high

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