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Automatic lithium battery pole piece coating machine

A coating machine and lithium battery technology, applied in the field of coating machines, can solve problems such as complex structure, uneven coating thickness, and waste of paint in intermittent coating machines, and achieve simple structure, convenient production, and reduced post-sequence work Effect

Inactive Publication Date: 2017-12-19
四川泰锂新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides an automatic coating machine for lithium battery pole pieces in order to solve the serious waste of paint in the existing continuous coating type coating machine, the complex structure of the intermittent coating machine, uneven coating thickness, tailing and other quality problems. It can realize intermittent coating, reduce the waste of resources, and at the same time has a simple structure, simple operation and can guarantee the coating quality

Method used

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  • Automatic lithium battery pole piece coating machine
  • Automatic lithium battery pole piece coating machine
  • Automatic lithium battery pole piece coating machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The lithium battery pole piece automatic coating machine includes an unwinding device, a tension adjusting device is installed at the back end of the unwinding device, a slurry coating device is installed at the back end of the tension adjusting device, and a drying device is installed at the back end of the slurry coating device. A rewinding device is installed at the rear end of the drying device; the unwinding device is mainly composed of an unwinding roller on which a pole piece roll is installed, and the tension adjusting device is mainly composed of a set of tension adjusting rollers; the slurry coating device includes a set of tension adjusting rollers. The coating roller and the die head that the battery slurry is coated on the pole piece, the die head is matched in parallel with one side of the coating roller, and the outlet of the die head is facing the coating roller; the outlet in the die head is provided with three sheet-shaped pads The die is divided into f...

Embodiment 2

[0033]The lithium battery pole piece automatic coating machine includes an unwinding device, a tension adjusting device is installed at the back end of the unwinding device, a slurry coating device is installed at the back end of the tension adjusting device, and a drying device is installed at the back end of the slurry coating device. A rewinding device is installed at the rear end of the drying device; the unwinding device is mainly composed of an unwinding roller on which a pole piece roll is installed, and the tension adjusting device is mainly composed of a set of tension adjusting rollers; the slurry coating device includes The coating roller and the die head that the battery slurry is coated on the pole piece, the die head is matched in parallel with one side of the coating roller, and the outlet of the die head is facing the coating roller; the outlet in the die head is provided with two strip-shaped The spacer divides the die into three areas, and the height of the sp...

Embodiment 3

[0035] The lithium battery pole piece automatic coating machine includes an unwinding device, a tension adjusting device is installed at the back end of the unwinding device, a slurry coating device is installed at the back end of the tension adjusting device, and a drying device is installed at the back end of the slurry coating device. A rewinding device is installed at the rear end of the drying device; the unwinding device is mainly composed of an unwinding roller on which a pole piece roll is installed, and the tension adjusting device is mainly composed of a set of tension adjusting rollers; the slurry coating device includes The coating roller and the die for coating the battery slurry on the pole piece, the die is arranged in parallel on one side of the coating roller, and the outlet of the die is facing the coating roller; the outlet in the die is provided with three strip-shaped Gasket, the die head is divided into four areas, a gasket is arranged in the middle of the...

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Abstract

The invention discloses an automatic lithium battery pole piece coating machine used for solving the problems that the conventional continuous coating machine is labor-hour-consuming and wastes resources and a batch-type coating machine is complicated in structure, difficult in operation and difficultly controllable in quality. The automatic lithium battery pole piece coating machine disclosed by the invention comprises an unwinding device, wherein a tension adjustment device is arranged at the rear end of the unwinding device; a slurry coating device is arranged at the rear end of the tension adjustment device; a drying device is arranged at the rear end of the slurry coating device; a winding device is arranged at the rear end of the drying device; the unwinding device mainly comprises unwinding rollers; pole piece coils are arranged on the unwinding rollers; the tension adjustment device mainly comprises a group of tension adjustment rollers; the slurry coating device comprises a coating roller and a die head; the coating roller is used for coating battery slurry onto the pole piece; the die head is matched with one side of the coating roller in parallel; the outlet of the die head is aligned at the coating roller; a gasket for partitioning the battery slurry is arranged at the outlet in the die head; and the height of the gasket is lower than the depth of the battery slurry in the die head. According to the automatic lithium battery pole piece coating machine disclosed by the invention, the problem that the quality of the batch-type coating machine is difficultly ensured is solved, and the problem that the continuous coating machine wastes resources is overcome.

Description

technical field [0001] The invention belongs to the field of lithium battery production and preparation, and particularly relates to a coating machine for spraying battery slurry on battery pole pieces. Background technique [0002] The world's energy and environmental protection situation is becoming more and more tense, and batteries are increasingly favored by people as a power source. Lithium-ion batteries have become the first choice for the development of power batteries due to their high energy density, light volume, small weight, environmental protection and no pollution. [0003] Coating is one of the most important technological processes of lithium ion batteries. Coating is to uniformly coat the positive electrode slurry or negative electrode slurry required for lithium ion battery manufacturing on the substrate. At present, the positive electrode substrate is aluminum foil, and the negative electrode substrate is copper foil. Traditional coating methods include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C1/08B05C9/14B05C13/02
CPCB05C1/0834B05C1/0813B05C9/14B05C13/02
Inventor 张欢
Owner 四川泰锂新能源科技有限公司
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