一种烘干组件及烘干设备

By designing baffles and detection components in the drying assembly to regulate airflow, the problem of cracking in the thinned area at the edge of the electrode sheet was solved, achieving efficient and precise drying of the electrode sheet and improving its forming effect.

CN224507529UActive Publication Date: 2026-07-17HU ZHOU YAO NING GU TAI DIAN CHI YAN JIU YUAN YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HU ZHOU YAO NING GU TAI DIAN CHI YAN JIU YUAN YOU XIAN GONG SI
Filing Date
2025-07-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The thinned area at the edge of the electrode is prone to cracking during the drying process, affecting battery consistency and safety.

Method used

Design a drying component including an air outlet, a baffle, and a detection component. By adjusting the position of the baffle to block the airflow from the air outlet to the thinning area, and combining the CCD vision detection component to monitor the dryness in real time, the movement of the baffle is controlled to regulate the airflow and prevent the thinning area from drying too quickly.

Benefits of technology

It effectively slows down or prevents cracking of the thinned area during subsequent coating, improves electrode forming effect and consistency, and enhances the automation and precision of the drying process.

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Abstract

本申请提供了一种烘干组件及烘干设备,用于烘干位于极片的涂覆区和削薄区的活性物质,烘干组件包括出风件、挡板及检测件,出风件包括用于向活性物质层吹风的出风口;挡板设置于出风口长度方向的至少一端,且能相对于出风件活动,以使挡板能够至少对出风口向削薄区吹风的局部进行遮挡;检测件用于检测位于削薄区的活性物质的状态。当使用烘干组件对位于极片的活性物质的烘干时,通过调节挡板的位置对出风口吹向削薄区的风进行遮挡,避免削薄区的活性物质层引发的卷边现象,减缓甚至避免削薄区在后续涂布过辊展平时开裂。当检测件检测位于削薄区的活性物质层干度到达目标值后,发出信号以控制挡板活动,以实现对吹向位于削薄区的风的调节。
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Claims

1. A drying assembly for drying active material located in the coating area and thinning area of ​​an electrode, characterized in that, include: An air outlet, including an air outlet for blowing air into the active material layer; A baffle is disposed at at least one end along the length of the air outlet and is movable relative to the air outlet component, so that the baffle can at least partially block the airflow from the air outlet to the thinned area. A detection element is used to detect the state of the active material located in the thinned area.

2. The drying assembly of claim 1, wherein, It also includes a control unit that is communicatively connected to the detection element, the control unit being able to control the movement of the baffle relative to the air outlet element based on the signal detected by the detection element.

3. The toasting assembly of claim 1, wherein, The baffle is slidably connected to the air outlet, and the baffle can slide along the length and / or width of the air outlet.

4. The drying assembly according to claim 3, characterized in that, The baffle is a solid plate that can completely block a portion of the air outlet.

5. The toasting assembly of claim 3, wherein, The air outlet is provided with an air outlet mesh, and the baffle is a mesh structure. The air volume of the air outlet can be adjusted by adjusting the correspondence between the air outlet mesh and the mesh openings in the mesh structure.

6. The drying assembly of claim 5, wherein, In the width direction of the thinning zone, the thickness of the active material layer in the thinning zone is different, and the pore size of different regions of the mesh structure is proportional to the thickness of the corresponding active material layer.

7. The toasting assembly of claim 1, wherein, The baffle is provided one-to-one with the thinned area of ​​the electrode sheet, and at least two baffles are provided, which are respectively located at both ends of the length direction of the air outlet.

8. The drying assembly of claim 1 or 2, wherein, The detection component is a CCD vision detection component.

9. A drying apparatus, characterized by, Includes the drying component as described in any one of claims 1-8.

10. The drying apparatus according to claim 9, characterized in that, Multiple drying components are spaced apart within the drying equipment along the length of the electrode.