Heat shrinking technology and device for improving membrane wavy edge

A wavy edge and thermal shrinkage technology, applied to electrical components, circuits, battery pack components, etc., can solve problems such as bad waves, unusable diaphragms, and waste of resources

Active Publication Date: 2016-08-17
NINGDE ZHUOGAO NEW MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the production and manufacturing process of domestic diaphragms, due to the uneven tension of the diaphragm and the failure of tension control, the diaphragm has serious wave defects after the finished diaphragm is shipped, and the wave defects appear after the ...

Method used

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  • Heat shrinking technology and device for improving membrane wavy edge
  • Heat shrinking technology and device for improving membrane wavy edge
  • Heat shrinking technology and device for improving membrane wavy edge

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Embodiment Construction

[0028] A thermal shrinkage process for improving the wavy edge of a diaphragm, comprising the following steps:

[0029] (1) Prepare the rewinding roller, arrange a plurality of shrinkable buffer strips at equal intervals on the outer surface of the rewinding roller, and each buffer strip is parallel to the axial direction of the rewinding roller, and the buffer strips protrude from the rewinding roller The outer surface. The length of the buffer strip is greater than the width of the diaphragm;

[0030] (2) Winding the diaphragm onto the rewinding roller 1 provided with buffer strips;

[0031] (3) Bake the rewinding roll wound with the diaphragm at a certain temperature and keep it for a certain period of time. When baking, set the temperature at 40-60°C and keep it for 20-30 hours. Preferably, when baking , set the temperature to 50°C and keep it for 24h;

[0032] (4) The diaphragm after baking is taken out and cooled at normal temperature;

[0033] (5) Coating a certain ...

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Abstract

The invention provides a heat shrinking technology for improving a membrane wavy edge. The heat shrinking technology includes the following steps that rewinding rollers are prepared, a plurality of shrinkable buffer strips are arranged on the outer surfaces of the rewinding rollers at equal intervals, and all the buffer strips and the rewinding rollers are parallel in the axial direction; 2, membranes are wound around to the rewinding rollers provided with the buffer strips; 3, the rewinding rollers wound with the membranes are baked at the certain temperature, and baking is kept for certain time; 4, the baked membranes are taken out and cooled at the normal temperature; 5,the surfaces of the cooled membranes are coated with slurry with the certain thickness. The heat shrinking technology and device have the advantages that the membranes are even accordingly, the poor waves are reduced after the membranes are coated, the over-specification radian and the over-specification size after the membranes are cut to small strips are decreased, the superior product rate of the membranes is increased, production resources are reasonably used, and waste is reduced.

Description

technical field [0001] The invention relates to lithium battery manufacturing technology, in particular to a heat shrinking process and a heat shrinking device for improving the isolation of corrugated edges. Background technique [0002] At present, in the production and manufacturing process of domestic diaphragms, due to the uneven tension of the diaphragm and the failure of tension control, the diaphragm has serious wave defects after the finished diaphragm is shipped, and the wave defects appear after the diaphragm is coated, which affects the curvature of the diaphragm after it is cut into small strips. , The size exceeds the specification, and eventually the diaphragm cannot be used, resulting in waste of resources and increasing the production cost of the enterprise. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a heat shrinking process and a heat shrinking device for improving the isolation of the wa...

Claims

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Application Information

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IPC IPC(8): H01M2/14H01M50/403
CPCH01M50/403Y02E60/10
Inventor 梁正广王晓明舒红徐远新
Owner NINGDE ZHUOGAO NEW MATERIAL TECH CO LTD
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