Pole piece strip drying device

Abstract

The pole piece strip drying device comprises a machine box, an unwinding mechanism, a drying mechanism, a cooling mechanism and a winding mechanism, the unwinding mechanism, the drying mechanism, the cooling mechanism and the winding mechanism are sequentially arranged in the machine box, a feeding chamber, a drying chamber, a cooling chamber and a material collecting chamber are formed in the machine box at intervals, and the feeding chamber, the drying chamber, the cooling chamber and the material collecting chamber all communicate with vacuum exhaust pipes; the unwinding mechanism is arranged in the feeding chamber and used for releasing wound pole piece strips, the drying mechanism is arranged in the drying chamber and comprises a plurality of heating rollers arranged at intervals, the pole piece strips are sequentially wound around the heating rollers and used for heating and drying the pole piece strips, the cooling mechanism is arranged in the cooling chamber and comprises a plurality of cooling rollers arranged at intervals, and the cooling rollers are used for cooling the pole piece strips. The pole piece strip is sequentially wound around the cooling rollers and used for cooling the dried pole piece strip, and the winding mechanism is arranged in the material receiving chamber and used for recycling and coiling the dried and cooled pole piece strip; the pole piece strip drying device has the advantages of being high in heating efficiency and low in energy consumption.

Description

technical field [0001] The invention relates to the technical field related to the manufacture of lithium batteries, in particular to a pole piece strip drying device. Background technique [0002] At present, the lithium battery industry at home and abroad has a good development prospect. Lithium-ion batteries have been widely used in portable electrical appliances such as laptop computers, cameras, and mobile communications due to their unique performance advantages. The currently developed high-capacity lithium-ion battery has been tested in electric vehicles and is expected to become one of the main power sources for electric vehicles in the 21st century, and will be more widely used in satellites, aerospace and energy storage. With the shortage of energy and the huge pressure on the world's environmental protection. Lithium batteries are now widely used in the electric vehicle industry, especially the emergence of lithium iron phosphate batteries, which has promoted th...

AI Technical Summary

Problems solved by technology

[0003] There are two types of drying equipment currently in production, one is to bake the material under normal pressure, and the other is to bake the whole roll in a vacuum box. The two baking methods take a long time and are easy to be heated Uniform, although these mechanisms can roughly meet the requirements of use, but the efficiency is too slow, resulting in a waste of production capacity and resources. If you want to increase production capacity, you can only increase the number of equipment invested, resulting in high overall costs

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