隔膜预卷方法、电芯卷绕方法及电芯卷绕装置
By cooperating with the first and second wrapping rollers, the diaphragm is pre-wound on the mandrel surface without damage, which solves the problem of damage to the cell quality caused by diaphragm pre-wound in the mandrel winding method, and improves the overall quality and production efficiency of the cell.
CN115498279BActive Publication Date: 2026-07-17WUXI LEAD INTELLIGENT EQUIP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI LEAD INTELLIGENT EQUIP CO LTD
- Filing Date
- 2022-09-20
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In the existing technology, the pre-winding process of the diaphragm in the mandrel winding method is prone to damage to the diaphragm and mandrel structure, resulting in a decrease in cell quality.
Method used
By using the combination of first and second wrapping rollers, the diaphragm strip forms a large wrap angle on the mandrel surface, and is clamped and fixed to avoid direct contact with the mandrel. Rotating the mandrel achieves the pre-winding of the diaphragm.
Benefits of technology
This technology enables non-destructive pre-winding of the diaphragm, improving cell quality and production efficiency while avoiding damage to the diaphragm and spindle.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115498279B_ABST
Abstract
本发明涉及一种隔膜预卷方法、电芯卷绕方法及电芯卷绕装置，在进行电芯卷绕之前先采用上述隔膜预卷方法进行隔膜的预卷。卷绕所需的隔膜料带先穿过芯轴与第一包裹辊之间的间隙，再通过第一包裹辊与第二包裹辊配合使位于第一包裹辊下游侧的隔膜料带包绕芯轴。此时，隔膜料带在芯轴上形成较大的包角，而第二包裹辊与第一包裹辊相抵持则能够夹紧隔膜料带。因此，旋转芯轴便可使隔膜料带卷绕于芯轴的表面，从而实现隔膜的预卷。预卷后引入极片料带，继续旋转芯轴即可进行电芯的卷绕。由于进行隔膜的预卷时不会对隔膜料带及芯轴造成损伤，故上述电芯卷绕方法能够改善电芯的品质。
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