Battery cell detection method and system
By acquiring the film width data of the anode and cathode electrodes and the X-ray inspection results, the accurate electrode misalignment amount can be calculated, which solves the problem of inaccurate cell inspection results in the existing technology and improves the reliability and yield of cell inspection.
CN122418072APending Publication Date: 2026-07-17CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, X-ray detection has difficulty in effectively distinguishing the boundary between the anode tab and the anode plate, resulting in poor accuracy of cell detection results.
Method used
By acquiring the film width data of the anode and cathode electrodes before winding and the X-ray inspection results after winding, the accurate electrode misalignment amount is calculated. Combined with the electrode misalignment amount, cell inspection is performed to improve the reliability of the inspection results.
Benefits of technology
This improved the accuracy of battery cell testing results, reduced the risk of missed detections, and increased the yield of battery cells.
✦ Generated by Eureka AI based on patent content.
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Figure CN122418072A_ABST
Abstract
本申请实施例提供一种电芯检测方法及系统。该方法包括获取阳极极片、阴极极片和隔膜卷绕之前，阳极膜层的第一主体部对应的多个第一膜宽，以及阴极膜层的第二主体部对应的多个第二膜宽；获取卷绕完成后电芯进行X射线检测得到的第一极片错位量，第一极片错位量为电芯在远离阳极极耳的一侧，每圈阴极极片的相邻阳极极片的第一主体部超出阴极极片的第二主体部的尺寸；根据多个第一膜宽、多个第二膜宽和第一极片错位量，确定第二极片错位量，第二极片错位量为电芯在靠近阳极极耳的一侧，每圈阴极极片的相邻阳极极片的第一主体部超出阴极极片的第二主体部的尺寸。可以计算出准确的阳极极耳侧的第二极片错位量，提高电芯检测结果的可靠性。
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