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Lithium battery recombination machine, hot-pressing system and heating device

A technology for heating devices and complexes, applied in the direction of secondary batteries, secondary battery manufacturing, non-aqueous electrolyte storage batteries, etc., can solve problems such as product quality reduction, strip-shaped complex wrinkles, deformation, etc., to ensure product quality, Improve the effect of hot pressing lamination and avoid wrinkles

Pending Publication Date: 2019-08-30
东莞市联德企业管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a lithium battery composite machine, aiming to solve the problem that the heating device in the prior art adopts high-temperature counter-roll rolling to realize the hot-compression composite of the pole piece and diaphragm, and there is a problem that the pole piece The direct hot pressing of the diaphragm and the diaphragm will deform at room temperature, resulting in wrinkles in the strip composite, affecting the hot pressing composite effect and reducing the technical problem of product quality

Method used

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  • Lithium battery recombination machine, hot-pressing system and heating device
  • Lithium battery recombination machine, hot-pressing system and heating device
  • Lithium battery recombination machine, hot-pressing system and heating device

Examples

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Effect test

Embodiment 1

[0048] Such as Figure 1-7 As shown, the present embodiment provides a heating device 30. Specifically, the detailed description of the heating device 30 of this embodiment is further explained by applying it to a lithium battery compound machine: the lithium battery compound machine includes an input diaphragm and an electrode The sheet feeding device 10, the driving device 20 for stacking the pole piece and the diaphragm so that the pole piece and the diaphragm form a strip-shaped composite and transporting the strip-shaped composite, and heating the strip-shaped composite to a preset high temperature The heating device 30, the pressing device 40 for extruding the strip-shaped composite body heated to a high temperature by the heating device 30 so that the high-temperature pole piece and the diaphragm are bonded and formed, and the strip-shaped composite body for cutting To the cutting device 50 with a preset length, the output end of the feeding device 10 is connected to th...

Embodiment 2

[0063] Such as figure 2 As shown, the feeding device 10 in this embodiment also includes a pair of roller drive mechanism 15, two groups of the third material roller 13, the first material roller 11, the pair of roller drive mechanism 15 and the second material roller. Rollers 12 are all arranged on one side of the first guide port, and the pair of roller driving mechanisms 15 are arranged between the third material roller 13 and the second material roller 12, and the pair of roller driving mechanisms 15 are used for To pre-compress the pole piece and the diaphragm conveyed by the second material roller 12 and the third material roller 13, so as to prevent the pole piece and the pole piece overlapped by the corresponding pole piece and the diaphragm from being guided through the first guide port The thickness of the band-shaped complex composed of the diaphragm is too large to block the first guide port.

[0064] In this embodiment, the pair of roller driving mechanisms 15 i...

Embodiment 3

[0076] Such as image 3 As shown, the driving device 20 in this embodiment includes a fourth material roller 21, a fifth material roller 22, a sixth material roller 23, a seventh material roller 24, a first synchronous wheel assembly 20C, a second synchronous wheel assembly 20D, The third synchronous wheel assembly 20E, the fourth synchronous wheel assembly 20F, the first drive member (not marked in the drawings), the second drive member (not marked in the drawings) and the first drive motor (not marked in the figures), the first The fourth material roller 21 and the fifth material roller 22 are arranged symmetrically up and down, the sixth material roller 23 and the seventh material roller 24 are arranged symmetrically up and down, and the first synchronous wheel assembly 20C and the second synchronous wheel assembly 20C The synchronous wheel assembly 20D is arranged symmetrically up and down, the third synchronous wheel assembly 20E and the fourth synchronous wheel assembly ...

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Abstract

The invention belongs to the technical field of lithium battery production equipment and particularly relates to a lithium battery recombination machine, a hot-pressing system thereof and a heating device. The heating device comprises a conveying device for conveying a strip-shaped composite body in which alternately stacked pole pieces and diaphragms are used as a main body, and a heating component disposed on the moving stroke of the strip-shaped composite body. The heating component comprises a support frame, a heat-generating plate and a heat-generating pipe. The support frame is providedwith an open cavity. The heat-generating plate is disposed in the open cavity and is provided with a mounting groove. The heat-generating pipe is mounted on the heat-generating plate and is configuredto heat the heat-generating plate to form a heat radiation region for heating the heat-generating composite body. The heating device provided by the invention can preheat the strip-shaped composite body before press-fitting, avoids deformation and wrinkles caused by directly hot pressing the pole pieces and the diaphragms at normal temperature, improves the thermal composite effect and ensures the product quality.

Description

technical field [0001] The invention belongs to the technical field of lithium battery production equipment, and in particular relates to a lithium battery composite machine, its hot pressing system and a heating device. Background technique [0002] As a new generation of chemical power sources, lithium-ion batteries are currently widely used in consumer electronics products due to their incomparable advantages over nickel-metal hydride, nickel-cadmium, and lead-acid batteries. They are also used as power batteries in various pure electric, in hybrid cars. At present, the production methods of lithium-ion batteries mainly include winding type and laminated type. From the perspective of lithium-ion battery performance and actual production: the advantage of winding type is that the manufacturing process is easy, and the advantage of stacked type is that the battery is of good quality in all aspects. , in order to combine the advantages of the two processes, people are curre...

Claims

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Application Information

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IPC IPC(8): H01M10/04H01M10/058
CPCH01M10/0468H01M10/058Y02E60/10Y02P70/50
Inventor 温在东
Owner 东莞市联德企业管理有限公司
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