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Lithium ion battery pole piece drying device

A lithium-ion battery and drying device technology, applied in drying, drying machine, drying gas arrangement, etc., can solve problems such as pinholes, large footprint, cracks, etc., to facilitate assembly and movement, and improve production Efficiency, small footprint effect

Inactive Publication Date: 2016-04-13
SHANDONG PEARSON POWER NEW ENERGY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Lithium-ion battery pole pieces need to be dried after coating. However, hot air drying is mostly used for drying at present. However, this method occupies a large area of ​​equipment, high energy consumption, and low efficiency. Bubbles, pinholes, and cracks often occur. and other problems lead to an increase in the scrap rate of battery pole pieces, which greatly reduces the level of automatic production of lithium batteries. Therefore, a device with a small footprint and high drying efficiency is needed

Method used

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Embodiment Construction

[0016] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes a cabinet body 1, an unwinding support 101 is provided on the upper front end of the cabinet body 1, an unwinding shaft 102 is provided on the unwinding support 101, and a pole piece base belt is set on the unwinding shaft; Roller; the input roller 5 is provided at the entrance of the outer front pole piece of the cabinet 1; the cabinet 1 is divided into heating chamber I2, heating chamber II3 and heating chamber III4 in turn; the heating chamber I2 is provided with longitudinally staggered The turning roller I6, which is located at the upper end of the heating chamber I2, and the turning roller I6 at the lower end of the adjacent heating chamber I2 form a group of infrared drying groups, and the adjacent infrared drying groups are provided with longitudinal infrared heaters 7 ; The upper end of the heating chamber I2 is provided with a first transmission port 8, and...

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Abstract

The invention relates to the technical field of lithium batteries and in particular to a lithium ion battery pole piece drying device. The lithium ion battery pole piece drying device comprises a cabinet. The cabinet is sequentially divided into a heating chamber I, a heating chamber II and a heating chamber III. Turning rolls I and infrared heaters are arranged in the heating chamber I. A first transmission port is formed in the upper end of the heating chamber I and formed in a heat insulation board I. Turning rolls II and fans are arranged in the heating chamber II. Turning rolls III are arranged in the heating chamber III and a vacuum pump and a vent valve are arranged at the upper end of the heating chamber III. A rotary roll is arranged at the lower end of the heating chamber III. The lithium ion battery pole piece drying device is safe, reliable, convenient to assemble and move, small in occupied area, high in drying speed and capable of solving the problem that bubbles, needle holes and chaps are generated and greatly improving production efficiency.

Description

(1) Technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a drying device for pole pieces of lithium ion batteries. (2) Background technology [0002] Lithium-ion batteries have the advantages of high working voltage, high specific energy, high energy density, high output power, long cycle life, and no environmental pollution. They are not only widely used in mobile communication equipment, but also widely used in electric vehicles. , electric tools and other fields, so the performance requirements of lithium batteries are getting higher and higher, which is the main direction of the development of major battery manufacturers at present. [0003] Lithium-ion battery pole pieces need to be dried after coating. However, hot air drying is mostly used for drying at present. However, this method occupies a large area of ​​equipment, high energy consumption, and low efficiency. Bubbles, pinholes, and cracks often occur. And oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B15/10F26B21/00
CPCF26B15/10F26B21/001
Inventor 董景珲曾涛杨兴林
Owner SHANDONG PEARSON POWER NEW ENERGY
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