Electrode Laminate Alignment via Reference Position Correction
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Solution Overview
Problem
Existing manufacturing apparatuses for electrode laminates fail to accurately correct lateral positional displacements between separators and electrodes, leading to errors in the production process due to incorrect reference positions, resulting in lateral positional displacement issues in the final laminate.
Innovation Solution
A manufacturing apparatus that includes a conveyor belt, separator material supply units, positional displacement detection sensors, correction units, and an image pickup unit to detect actual positional displacements and correct the reference position, ensuring precise alignment and positioning of separators and electrodes, thereby suppressing lateral positional displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If lateral positional displacement is detected using a predetermined reference position, then positional correction can be performed, but errors in the reference position cause incorrect correction and lateral displacement in the final laminate
Solution Approach 1:
The patent implements a feedback mechanism where the actual lateral positional displacement is detected by an image pickup unit, and this detected value is fed back to correct the predetermined reference position used by the detection sensor. This closed-loop feedback system ensures that errors in the reference position are continuously corrected based on actual measurements, resolving the contradiction between detection capability and manufacturing precision.
Solution Approach 2:
The patent performs preliminary detection of the actual lateral positional displacement using an image pickup unit before the final lamination process. This preliminary action allows the system to pre-correct the reference position and prevent lateral displacement errors from occurring in the final laminate, rather than detecting and correcting them after the fact.
2Manufacturing precision
If multiple correction units and detection sensors are added to improve positioning accuracy, then lateral displacement is reduced, but device complexity increases
Solution Approach 1:
The patent merges the functions of multiple correction units into a single integrated correction mechanism. Instead of having separate correction units for each separator and electrode, the system uses one correction unit that adjusts the reference position for all components simultaneously, reducing device complexity while maintaining alignment precision.
Solution Approach 2:
The image pickup unit serves multiple functions: it detects the actual lateral positional displacement, provides feedback for reference position correction, and monitors the positioning of both separators and electrodes. This multi-functional approach reduces the need for multiple specialized detection devices, simplifying the overall apparatus structure.
Data Source
AI summary
A manufacturing apparatus creates an electrode laminate in which an electrode is sandwiched between first and second separators. A first sensor detects a first lateral positional displacement amount in a width direction of the first separator with respect to a predetermined reference position. An electrode supply unit supplies the electrode to a predetermined electrode supply position. A second sensor detects a second lateral positional displacement amount in a width direction of the second separator with respect to a predetermined reference position. A control unit corrects a position of the first separator based on the first lateral positional displacement amount and corrects a position of the second separator based on the second lateral positional displacement amount. A camera detects an actual lateral positional displacement amount in the width direction of the first separator from a relationship with the position of the electrode by imaging, and the control unit corrects the predetermined reference position based on the actual lateral positional displacement amount.