Efficient and multifunctional iron phosphate lithium battery equipment

Abstract

The present invention discloses a piece of efficiency and multifunctional iron phosphate lithium battery equipment, wherein a first surface coating machine is disposed at a front end of an unreeling machine; an upper end of a slot of the coating machine is provided with a micro motor; a micro stirrer is disposed on a threaded rod; one end is connected to the micro motor and the other end is disposed on the slot; a drying box is divided into upper and lower layers; the front end of the drying box is provided with a cooling roller and a second surface coating machine in turn; a front end of the drying box is connected to a cooling box and the cooling roller, simultaneously a tablet press, a winding machine and the cooling roller at the front end are symmetrically mounted to be a production flow; advantageously, electrode pole piece double-faced coating and tablet press roller process are coated well once in three steps on a set of equipment; the tablet forming effect is good; the structure is simple; the operation is convenient; labours, devices, sites, electricity energy, time and funds are saved; sediment and accumulation of slurry particles are avoided; scratches of slurry particles are reduced; and a pole piece repairing function is provided, so that the quality and performance of the electrode are effectively improved.

Description

technical field [0001] The invention relates to manufacturing equipment of lithium ion battery pole pieces, in particular to a high-efficiency multifunctional lithium iron phosphate battery equipment. Background technique [0002] In the 21st century, the world is facing two serious problems: one is energy, and the other is environmental protection. The most effective way to solve energy is to save energy. Therefore, the top priority for energy conservation is to reduce the amount of oil used, and the largest amount of oil used is automobiles, so reducing the amount of oil used by automobiles is a top priority. The effective way to solve environmental protection should be to reduce emissions, and the exhaust emissions of petroleum vehicles have become the chief culprit of global air pollution. Therefore, the development of new energy electric vehicles is the fundamental way to effectively solve energy and environmental protection in the world. However, automobiles must fin...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the slurry's own characteristics, when the slurry is stored in the tank for too long, its natural sedimentation and accumulation will easily produce a large number of particles, which greatly affect the electrode piece. quality, resulting in the scrapping of a large number of pole pieces

In addition, during the production process of the coating machine, since the length of the drying box of the entire coating machine is 18-25.4 meters, the pole piece is easily shifted during the process of running the belt, and the automatic The left and right deviation correction stroke of the deviation correction system is 50mm. If the stroke of the deviation correction system is exceeded and the operator does not find out the shutdown in time, it will cause the pole piece belt in the belt of the coating machine. The existing production equipment coating machine electrode pole piece When it is put into the drying box, the accuracy of the deviation correction controller is not high. In the actual production process, the pole piece often deviates from the belt, so a large number of pole pieces are scrapped.

In addition, the existing production equipment is all single-sided coating machines, which can only coat one side at a time, that is, unwinding, coating, drying, winding and then re-coating on the other side.

The process of producing electrode pole pieces must be repeated once to coat both sides. After the electrode pole pieces are coated, they are disassembled and reinstalled on the roller of the tablet press. There is no heater installed in the roller cavity of the tablet press system. When the slurry is coated On the top of the foil, uneven smoothness, particles or scratches cannot be repaired, causing a large number of pole pieces to be scrapped and reducing the quality and performance of lithium batteries

[0004] In order to improve production efficiency, there is currently a coating machine that uses two layers of coating to be coated in two steps on one coating machine, such as a "coating machine suitable for lithium battery pole pieces" disclosed in patent application number 200720062203. ", this kind of coating machine has the same shortcomings as the existing production equipment coating machine. When the slurry is stored in the trough for too long, it will also precipitate and accumulate a large number of particles. The deviation correction controller of this machine Tracking sensor is used, the deviation correction accuracy is not high, and the pole piece must be reinstalled on the tablet press to rotate the roller when pressing, which is labor-intensive and time-consuming, but there is no heater installed in the roller cavity in the tablet press system, resulting in uneven and smooth pole pieces If there are particles or scratches, it cannot be repaired, causing a large number of pole pieces to be scrapped and reducing the quality and performance of lithium batteries

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