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Diaphragm unwinding mechanism and diaphragm unwinding method

A technology of unwinding mechanism and diaphragm, which is applied in the direction of structural parts, final product manufacturing, battery pack components, etc. It can solve problems such as diaphragm damage, diaphragm tension cannot be controlled, and lamination speed cannot meet the needs of ultra-high-speed lamination, etc., to achieve Reduce the unwinding speed, meet the needs of high-speed lamination, and facilitate the effect of tension adjustment

Active Publication Date: 2022-04-29
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In the lamination process, the diaphragm unwinding speed is one of the bottlenecks that limit the increase of the lamination speed. The current diaphragm unwinding mechanism is to laminate the diaphragm rolled out directly on the lamination platform after passing through the transmission roller. It is known that The fastest diaphragm unwinding speed is 36m / min. If the unwinding speed is too fast, it will cause adverse effects such as diaphragm damage and uncontrollable diaphragm tension, and the lamination speed in the prior art cannot meet the needs of ultra-high-speed lamination

Method used

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  • Diaphragm unwinding mechanism and diaphragm unwinding method
  • Diaphragm unwinding mechanism and diaphragm unwinding method
  • Diaphragm unwinding mechanism and diaphragm unwinding method

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0026] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] combine Figure 1-Figure 3 According to one aspect of the present invention, a diaphragm unwinding mechanism is provided, which includes a diaphragm roll 1 and two sets of rollers arranged in parallel and capable of moving toward each other, each set of rollers includes rollers 2 arranged at intervals along the vertical direction, The rollers 2 of the two groups of rollers are arranged to be continuously and alternately wound with the diaphragm released from the diaphragm roll 1 .

[0028] It should be noted that the diaphragm is wound on the rotating roller to form the diaphragm roll 1, so the diaphragm roll 1 can release the diaphragm during the rotation process, and the ...

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Abstract

The invention relates to the technical field of battery manufacturing, and provides a separator unwinding mechanism and a separator unwinding method. The diaphragm unwinding mechanism of the present invention includes a diaphragm roll and two sets of rollers arranged in parallel and capable of moving toward each other, each set of rollers respectively includes rollers arranged at intervals along the vertical direction, and the The rolls are arranged so as to be continuously alternately wound with the separators unwound from the separator rolls. The diaphragm unwinding mechanism of the present invention drives the two sets of rollers to move toward each other during the unwinding process, so that the unwinding speed can be relatively reduced while ensuring the same lamination speed of the subsequent diaphragm, thereby avoiding damage to the diaphragm and facilitating the operation of the diaphragm. The tension adjustment is performed, and at the same time, the speed of subsequent diaphragm lamination can be significantly increased at the same unwinding speed to meet the needs of high-speed lamination.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing, in particular to a diaphragm unwinding mechanism and a diaphragm unwinding method. Background technique [0002] Lithium-ion battery technology is one of the key technologies for the development of electric vehicles, and the square stack technology is the current development trend. In the lamination process, the diaphragm unwinding speed is one of the bottlenecks that limit the increase of the lamination speed. The current diaphragm unwinding mechanism is to laminate the diaphragm rolled out directly on the lamination platform after passing through the transmission roller. It is known that The fastest diaphragm unwinding speed is 36m / min. If the unwinding speed is too fast, it will cause adverse effects such as diaphragm damage and uncontrollable diaphragm tension, and the lamination speed in the prior art cannot meet the ultra-high-speed lamination requirements. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/403H01M10/0525H01M10/0585
CPCH01M10/0525H01M10/0585Y02E60/10Y02P70/50
Inventor 金正贤郑赫赵凯
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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