Cathode Electrode Corner Fold Detection in Composite Material Strips
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Solution Overview
Problem
The production yield of laminated cell assemblies is hindered by the inability to detect corner folds on cathode electrode plates in real time during the lamination process, leading to defects and material waste.
Innovation Solution
A method and system for corner fold detection on cathode electrode plates of composite material strips using computer vision technology, which involves acquiring images of the composite material strip, extracting the electrode plate body zone, and performing corner fold detection to identify and prevent defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional inspection methods are used for corner fold detection on cathode electrode plates, then the inspection process is simple, but the detection accuracy is low and real-time monitoring is not achieved
Solution Approach 1:
The patent replaces traditional mechanical inspection methods with a computer vision system comprising image acquisition units, processing units, and detection algorithms. This substitution enables automated, high-precision corner fold detection through optical imaging and digital image processing, achieving both high measurement precision and real-time monitoring capabilities.
Solution Approach 2:
The patent creates optical copies (images) of the cathode electrode plate surfaces using image acquisition units. These digital copies are then processed through image processing algorithms to detect corner folds, enabling non-contact, high-precision inspection without physically touching or disturbing the electrode plate.
2Loss of substance
If real-time corner fold detection is implemented during lamination, then material waste is reduced, but the equipment complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the image processing unit continuously monitors the cathode electrode plate during lamination, detects corner folds in real-time, and provides feedback signals to the control system. This enables immediate detection and prevention of material waste by identifying defects before they propagate through the production process.
Solution Approach 2:
The patent performs preliminary detection of corner folds during the lamination process itself, rather than inspecting finished products later. By detecting defects early in the production process, the system prevents further material waste and enables corrective actions before defective products are completed.
3Productivity
If manual inspection methods are used, then the equipment cost is low, but the productivity and inspection speed are reduced
Solution Approach 1:
The patent implements an automated inspection system that performs detection, processing, and analysis functions independently without requiring manual intervention. The image acquisition units continuously capture images, the processing unit automatically processes these images, and the system generates detection results autonomously, significantly increasing inspection speed and productivity.
Solution Approach 2:
The patent enables continuous inspection of cathode electrode plates throughout the lamination process. The image acquisition and processing systems operate continuously without interruption, maintaining constant monitoring of the production line, which dramatically increases inspection throughput compared to intermittent manual inspection methods.
Data Source
AI summary
This application provides a method, apparatus, and system for corner fold detection on a cathode electrode plate of a composite material strip, an electronic device, a laminator, a computer-readable storage medium, and a computer program product. The method includes: acquiring a to-be-inspected image of a composite material strip by using an image acquisition unit, where the to-be-inspected image includes an electrode plate body zone of the cathode electrode plate; extracting the electrode plate body zone from the to-be-inspected image; and performing corner fold detection on the electrode plate body zone. In the technical solutions of embodiments of this application, corner fold detection can be performed quickly and accurately on a cathode electrode plate of a composite material strip, thereby improving the production yield of laminated cell assemblies.