Electrode Plate Insulation Coating Feedback Control for Overlay Width
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Solution Overview
Problem
Existing technologies lack the ability to accurately control the overlay width of insulating material coated on electrode plates in secondary batteries, leading to potential safety issues and reduced battery capacity due to non-uniform insulation, which is critical for quality control and battery performance.
Innovation Solution
An insulation-coating overlay control system that includes an insulation coater, a width measuring means, and a controller to adjust the overlay width by comparing it with predetermined settings, ensuring uniformity and adherence to reference values, using a vision camera for precise measurement and feedback control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If insulating material is coated on electrode plates without precise overlay control, then coating process is simple and fast, but overlay width becomes non-uniform leading to safety issues and reduced battery capacity
Solution Approach 1:
The patent implements a feedback control system where the actual overlay width is measured during the coating process and compared with the target overlay width. The coating head position is then automatically adjusted based on the deviation detected, forming a closed-loop control system that ensures precise and uniform overlay width without requiring overly complex manual intervention
Solution Approach 2:
The patent replaces manual mechanical adjustment of the coating head position with an automated control system that uses sensors to detect overlay width and electronically controls the coating head positioning, thereby achieving precise control while maintaining relatively simple device structure
2Reliability
If overlay width is not controlled within predetermined range, then coating process is faster, but battery safety is compromised due to insufficient insulation or reduced capacity
Solution Approach 1:
The patent performs preliminary measurement of the overlay width during the coating process itself, allowing real-time detection and correction before the coating is complete. This prevents the need for rework or rejection of defective products while maintaining continuous production flow
Solution Approach 2:
The system continuously monitors overlay width and provides real-time feedback to adjust the coating head position, ensuring that the overlay width remains within the predetermined safe range throughout the coating process, thereby guaranteeing battery safety without slowing down production
Data Source
AI summary
An insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. The system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.