Stacked Cell Electrode Alignment Using Imaging Feedback
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Solution Overview
Problem
Existing stacked cell manufacturing devices face challenges in accurately positioning negative and positive electrode plates, leading to potential position deviations that can deteriorate the quality of the stacked cells.
Innovation Solution
A stacked cell manufacturing device that alternately disposes negative and positive electrode plates in the valley fold parts of a bellows-shaped folded separator, utilizing a separator feed unit, folding unit, electrode feed unit, and control unit to ensure precise alignment through imaging and position adjustment processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If reciprocating transfer heads are used to place electrode plates, then the stacking process can be simplified, but position deviation of electrode plates occurs and quality deteriorates
Solution Approach 1:
The patent replaces the mechanical reciprocating transfer head system with an imaging-based detection and control system. Cameras capture electrode plate positions, and a control unit processes this visual information to determine precise positioning, substituting mechanical complexity with optical-mechanical integration for improved accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the imaging unit continuously monitors electrode plate positions during the stacking process. The control unit receives this position information and adjusts the placement mechanism in real-time to correct any deviations, ensuring high positioning accuracy while maintaining process simplicity.
2Device complexity
If position detection is not implemented, then the manufacturing process remains simple, but position deviation cannot be detected and quality deteriorates
Solution Approach 1:
The patent introduces an imaging unit (camera system) to detect electrode plate positions, replacing the absence of detection with a non-contact optical measurement system. This maintains relative simplicity while enabling reliable position monitoring and quality assurance throughout the stacking process.
3Manufacturing precision
If multiple separate conveyance mechanisms are used for electrode plates, then positioning accuracy can be improved, but device complexity increases
Solution Approach 1:
The patent combines the conveyance and positioning functions into an integrated system where the conveyance mechanism works in conjunction with the imaging unit and control unit. This merged approach achieves high positioning accuracy through coordinated operation rather than multiple separate complex mechanisms.
Data Source
AI summary
A position adjustment process of an electrode plate on a position adjusting table is performed based on captured image data from an imaging unit for adjustment, so that the electrode plate placed on an upper part is fed to a normal position with respect to a separator.