Electrode Plate Fold Detection Using Multi-Position Edge Measurement
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Solution Overview
Problem
The existing methods for detecting electrode plates in traction batteries are labor-intensive, lack precision, and often result in missed or false detections, leading to issues like folding, low capacity, short circuits, and thermal runaway.
Innovation Solution
A detection method and apparatus that measure dimensional parameters at multiple positions on the uncoated portion of the electrode plate and compare them to a dimensional detection standard to determine if the plate is folded, allowing for accurate and timely identification of defects during production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual detection method is used for electrode plate, then labor intensity is reduced, but detection precision and accuracy deteriorate
Solution Approach 1:
The patent replaces manual mechanical detection with an automated optical detection system that uses imaging devices to capture images of the electrode plate and automatically analyzes them to detect folding defects, thereby maintaining low labor intensity while achieving high detection precision
Solution Approach 2:
The patent creates a digital copy (image) of the electrode plate surface and analyzes this copy to detect folding defects, allowing automated detection without physical contact with the actual electrode plate, thus preserving both ease of operation and measurement precision
2Device complexity
If single-position detection is used for electrode plate, then detection process is simplified, but detection accuracy deteriorates due to missed detections
Solution Approach 1:
The patent divides the electrode plate detection into multiple segments by setting several detection regions (first detection region, second detection region, etc.) at different positions, allowing comprehensive coverage of the entire plate to improve detection accuracy while maintaining manageable process complexity through systematic segmentation
3Device complexity
If offline detection is used for electrode plate, then detection equipment is simplified, but production efficiency deteriorates due to delayed defect identification
Solution Approach 1:
The patent implements continuous online detection during the electrode plate production process, where the imaging device continuously captures images and the analysis system continuously processes them to identify folding defects in real-time, ensuring uninterrupted production flow and high productivity without requiring complex batch processing equipment
Data Source
AI summary
This application provides a detection method for electrode plate, a detection apparatus for electrode plate, a stacking system, a detection device, and a computer-readable storage medium, where the electrode plate includes a coated portion and an uncoated portion located on at least one side of the coated portion in a longitudinal direction. The detection method includes: step S1000: obtaining dimensional parameters D1 . . . DN at different detection positions P1 . . . PN of the uncoated portion in a transverse direction perpendicular to the longitudinal direction; and step S2000: comparing the dimensional parameters D1 . . . DN with a dimensional detection standard S to determine whether the uncoated portion is folded, where N is a positive integer, and N is greater than or equal to 2.