Unit Cell Lamination Alignment Using Vision Feedback Correction
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Solution Overview
Problem
Existing unit cell manufacturing processes face challenges in achieving precise alignment and automatic correction of central electrodes, upper and lower separators, and electrodes, which are crucial for efficient battery assembly.
Innovation Solution
A unit cell manufacturing device and method that includes a laminate conveying system, vision parts for measuring positional information, and a control part for automatic correction of electrode and separator positions, utilizing a programmable logic controller (PLC) to improve alignment and cutting precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual alignment methods are used for central electrode, upper separator, lower separator, upper electrode, and lower electrode, then the alignment precision is insufficient, but implementing automatic correction increases device complexity
Solution Approach 1:
The patent implements automatic correction by introducing vision parts that detect the positions of electrodes and separators, feed this information to a control part, and automatically adjust the alignment. This feedback mechanism resolves the contradiction by achieving high precision alignment through automated systems rather than manual methods, thereby improving manufacturing precision while managing device complexity through intelligent control.
Solution Approach 2:
The patent replaces manual mechanical alignment operations with an automated system comprising vision parts for detection and a control part for correction. This substitution eliminates the need for manual intervention, achieves consistent high-precision alignment, and resolves the contradiction by using automated detection and control mechanisms instead of manual mechanical adjustment.
2Productivity
If automatic correction systems are implemented, then manufacturing efficiency and alignment consistency improve, but device complexity and initial cost increase
Solution Approach 1:
The patent implements a self-correcting system where the manufacturing apparatus automatically detects and corrects alignment deviations without external intervention. The vision parts continuously monitor the positions of electrodes and separators, and the control part automatically adjusts them, enabling the system to self-correct and maintain high manufacturing efficiency while reducing the need for manual operations.
Solution Approach 2:
The automatic correction system uses real-time feedback from vision parts to maintain alignment precision throughout the manufacturing process. This continuous monitoring and adjustment mechanism improves manufacturing efficiency by eliminating manual intervention and ensuring consistent quality, while the智能化 control optimizes the use of system resources.
3Measurement precision
If vision parts are used to measure position information, then alignment accuracy improves, but measurement and detection difficulty increases due to multiple components
Solution Approach 1:
The vision parts in the patent are designed to measure the positions of multiple components (central electrode, upper separator, lower separator, upper electrode, and lower electrode) simultaneously using a unified measurement approach. This multi-functional capability allows the system to achieve high measurement precision for all components while simplifying the measurement process through a single integrated vision system rather than separate measurement devices for each component.
Data Source
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AI summary
One embodiment of the present invention provides a unit cell manufacturing device comprising a vision part for measuring a measurement value comprising the position information of at least one of the central electrode, the upper separator, the lower separator, the upper electrode and the lower electrode in the unit cell; and a control part for calculating the position correction value of at least one of the central electrode, the upper separator, the lower separator, the upper electrode, and the lower electrode, based on the measurement value measured in the vision part, and correcting at least one of the position of the central electrode supplied to the laminate conveying part, the position of the upper electrode supplied to the laminate conveying part, the position of the lower electrode supplied to the laminate conveying part and the cutting position of the laminate cutting part, based on the calculated position correction value.