Device for coating lithium battery diaphragm with PVDF coating

A lithium battery separator and coating technology, which is applied to devices, coatings, and battery pack components that apply liquid to the surface.

Inactive Publication Date: 2020-12-15
ZHEJIANG IND POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing battery separator coating device needs to be shut down during the replacement process of the winding roller and unwinding roller, which will lead to continuous interruption of the production process, which cannot be carried out continuously, and the coating efficiency is low

Method used

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  • Device for coating lithium battery diaphragm with PVDF coating
  • Device for coating lithium battery diaphragm with PVDF coating
  • Device for coating lithium battery diaphragm with PVDF coating

Examples

Experimental program
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Embodiment Construction

[0048] Attached below Figure 1-16 The embodiments of the present invention are described in detail.

[0049] A device for coating a PVDF coating on a lithium battery diaphragm, comprising a frame 1, on which an unwinding mechanism 2, a swinging mechanism 3, a cleaning mechanism 5, a coating conversion mechanism 6, Coating mechanism 7, drying mechanism 8, cutting mechanism 4 and winding mechanism 9, frame 1 includes vertical plate 11, top plate 12 and support plate 13 vertically installed on the vertical plate 11, the vertical plate 11 is provided with several Guide rollers 15 for guiding the transport direction of the membrane. The guide roller 15 includes a first fixed plate 1501 and a second fixed plate 1504 fixed on the vertical plate 11. The front end of the first fixed plate 1501 is connected with a first fixed rod 1502, and the front end of the first fixed rod 1502 is connected with a fixed arm 1503. The middle position of the two fixed plates 1504 is fixedly provided...

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Abstract

The invention discloses a device for coating a lithium battery diaphragm with a PVDF coating. The device is characterized by comprising a rack, wherein an unwinding mechanism, a swinging mechanism, acleaning mechanism, a coating conversion mechanism, a coating mechanism, a drying mechanism, a cutting mechanism and a winding mechanism are arranged on the rack in the advancing direction of the diaphragm; the rack comprises a vertical plate, a top plate and a supporting plate, wherein the top plate and the supporting plate are vertically arranged on the vertical plate; a plurality of guide rollers used for guiding the conveying direction of the diaphragm are arranged on the vertical plate; the unwinding mechanism comprises a rotating rod and a supporting rod which are fixed on the vertical plate; two mounting plates are rotationally arranged on the rotating rod; two connecting rods are connected between the two mounting plates; a hinge rod is connected to the mounting plate on the outerside; a rotating air cylinder is hinged to the outer end of the supporting rod; a rotating air cylinder piston rod is arranged in the rotating air cylinder; the upper end of the rotating air cylinderpiston rod is hinged to the hinge rod; and two unwinding rollers are rotationally arranged between the two mounting plates. The device is high in automation degree, and the production efficiency of the diaphragm is obviously improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery diaphragm coating, in particular to a device for coating a PVDF coating on a lithium battery diaphragm. Background technique [0002] Lithium-ion batteries have been widely and rapidly applied in various fields due to their advantages such as high specific energy, long cycle life, good safety performance, environmental friendliness and no memory effect. The basic role of the battery separator in a lithium battery is to separate the positive and negative electrodes, and to absorb the electrolyte to allow lithium ions to pass through. The existing battery diaphragm coating device needs to be shut down during the replacement process of the winding roller and the unwinding roller, which will lead to continuous interruption of the production process, which cannot be carried out continuously, and the coating efficiency is low. Contents of the invention [0003] The purpose of the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C9/14B05C1/08B05C21/00B08B1/02B65H19/12B65H19/26B65H19/30B65H23/26B65H23/34H01M2/14
CPCB05C1/0817B05C1/0821B05C1/083B05C9/14B05C21/005B08B1/02B65H19/126B65H19/26B65H19/30B65H23/26B65H23/34
Inventor 童高鹏杨建青
Owner ZHEJIANG IND POLYTECHNIC COLLEGE
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