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Battery pole piece processing technology

A processing technology and battery pole piece technology, applied in the direction of battery electrodes, electrode manufacturing, circuits, etc., can solve the problems of slow dust removal speed, low efficiency, and burrs that cannot fall off, etc., and achieve the effect of fast powder brushing speed and high efficiency

Active Publication Date: 2020-01-14
杭州紫乘生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the lithium battery pole piece powder brushing and dedusting machine mainly includes a transmission mechanism installed on the frame, and a brush arranged above the transmission mechanism. The edge and surface of the lithium battery pole piece are brushed and dusted, but this kind of lithium battery pole piece dust remover only passively cleans the lithium battery pole piece when brushing and dusting the edge and surface of the lithium battery pole piece. The edge and surface of the surface are brushed and dusted, which will easily cause some stubborn burrs to fall off and the dust with strong adsorption force cannot be cleaned, and the speed of brushing and dusting is slow and the efficiency is low.

Method used

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] A battery pole piece processing technology, comprising the following steps:

[0030] a. Slurry preparation: the slurry is stirred by a stirring device, and the slurry is evenly dispersed;

[0031] b. Coating: Coating the prepared slurry on the front and back of the current collector metal foil through the coating equipment, and the coating on the front and back of the pole piece is symmetrical;

[0032] c. Drying: use a drying device to dry the coated pole piece to obtain a dried electrode structure;

[0033] d. Rolling: After the pole pieces are dried, they are rolled and compacted by a roller press;

[0034] e. Slitting: Use a slitting device to cut the rolled pole...

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Abstract

The invention discloses a battery pole piece processing technology. The battery pole piece processing technology comprises the following steps of slurry preparation, coating, rolling, drying, slittingand powder brushing. A powder brushing machine comprises a first conveying device, a first powder brushing device, a rotating device, a second powder brushing device and a second conveying device. Apole piece needing to be brushed with the powder is conveyed to the first powder brushing device through the first conveying device; the first powder brushing device removes burrs and powder particlesat the two opposite ends of the pole piece, the pole piece treated by the first powder brushing device is rotated by 90 degrees through the rotating device and moved to the second conveying device, the second conveying device enables the pole piece to move to the second powder brushing device, and burrs and powder particles at the other two opposite ends of the pole piece are removed. The powderbrushing speed is high, the efficiency is high, and burrs and powdery particles can be well removed.

Description

technical field [0001] The invention relates to a battery pole piece processing technology, in particular to a pole piece powder brushing machine. Background technique [0002] With the widespread use of digital products such as mobile phones and notebook computers, lithium batteries have been widely used in such products due to their excellent performance, and have gradually developed into other product application fields in recent years. Among them, the lithium battery pole piece is an important part of the lithium battery. After cutting, it is usually necessary to brush the edge and surface of the lithium battery pole piece to remove burrs and dust on the edge and surface of the lithium battery pole piece. [0003] At present, manufacturers usually use a lithium battery pole piece brushing machine to brush and remove dust on the edges and surfaces of lithium battery pole pieces. In the prior art, the lithium battery pole piece powder brushing and dedusting machine mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/04B05D7/14B08B1/00B08B1/02B08B1/20
CPCB08B13/00B08B15/04H01M4/0402B08B1/20B08B1/12Y02E60/10
Inventor 钱车华
Owner 杭州紫乘生物科技有限公司
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