Battery Electrode Overhang Detection With Dynamic Edge Positioning
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Solution Overview
Problem
Existing Overhang measurement technologies for battery electrode sheets rely on fixed-area linear fitting, which limits flexibility and adaptability, making them unsuitable for online measurements and complex environments.
Innovation Solution
The method determines the location of electrode sheet edges based on dynamically determined areas, eliminating the need for pre-defined fixed areas, allowing for flexible positioning and improved adaptability in various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed-area linear fitting solution is used to position electrode sheet edges, then the measurement process is simple, but the flexibility and adaptability are poor
Solution Approach 1:
The patent applies the dynamics principle by transitioning from fixed-area linear fitting to dynamic area determination. The system dynamically identifies electrode sheet edge locations based on actual image content rather than predetermined fixed areas. This is achieved through edge detection algorithms that adapt to varying electrode sheet positions and orientations, enabling the measurement system to handle diverse measurement scenarios including online and offline measurements, as well as complex environmental conditions.
2Adaptability or versatility
If fixed-area linear fitting is used for electrode sheet edge positioning, then the measurement method is easy to implement, but it cannot be applied to online measurements and complex environments
Solution Approach 1:
The patent applies parameter changes by modifying the fundamental approach from fixed geometric areas to dynamic parameter-based area determination. The system uses edge detection parameters and image processing algorithms that can adapt to different measurement conditions. This enables the system to handle online measurements where electrode sheets move continuously, and complex environments with varying lighting and positioning, while maintaining ease of operation through automated image processing.
3Adaptability or versatility
If dynamic area determination is used to position electrode sheet edges, then the flexibility and adaptability are improved, but the measurement complexity increases
Solution Approach 1:
The patent applies mechanics substitution by replacing the mechanical concept of fixed physical measurement areas with computational image processing methods. Instead of using predetermined spatial zones, the system uses digital image analysis and edge detection algorithms to dynamically determine electrode sheet boundaries. This substitution of mechanical positioning with computational methods achieves flexibility and adaptability while managing complexity through software-based solutions.
Data Source
AI summary
An Overhang detection method for a battery electrode sheet includes acquiring an image of a battery electrode sheet; determining the locations of a plurality of electrode sheet edges in the image, wherein the plurality of electrode sheet edges are electrode sheet edges related to an Overhang measurement value corresponding to the image, the location of each electrode sheet edge is determined on the basis of an area where each electrode sheet edge is located, and the area where each electrode sheet edge is located is a dynamically determined area; and determining, according to the locations of the plurality of electrode sheet edges, the Overhang measurement value corresponding to the image.