Unlock instant, AI-driven research and patent intelligence for your innovation.

Lithium battery pole piece burr online detection method and system

A detection method and lithium battery technology, applied in the field of image processing, can solve the problem of inability to fully detect burrs, and achieve the effect of improving the acquisition frame rate

Active Publication Date: 2021-08-27
南京帝感智能科技有限公司
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method and system for online detection of burrs on lithium battery pole pieces to solve the problem that existing line-scanning cameras cannot fully detect burrs smaller than 5um

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lithium battery pole piece burr online detection method and system
  • Lithium battery pole piece burr online detection method and system
  • Lithium battery pole piece burr online detection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The present invention provides such figure 1 Shown is a method for on-line detection of lithium battery pole piece burrs, comprising the following steps:

[0062] S1. Select and install the acquisition device through the selection method and the layout method, and set the parameters of the acquisition device through the parameter calculation method; the acquisition device includes a camera, a lens, and a light source. In the acquisition hardware selection method, the lens Including vertical glitch lens and horizontal glitch lens; the setting method of the camera ROI is as follows:

[0063] Set the ROI width to the full frame width of the image, and set the ROI height to 200-1000. According to the jitter situation, the range covering the pole piece and burrs shall prevail; ROI (region of interest), the region of interest, in this embodiment, set Camera ROI, to improve the camera frame rate, the method is as follows: ROI width is the image width, set the ROI height to 20...

Embodiment 2

[0103] The difference from Embodiment 1 is that in this embodiment, the longitudinal burr of the pole piece is detected, and the detection process is as follows image 3 As shown, the erection scheme is as follows Figure 5 As shown, the detection accuracy is 5um, and the detection speed is 100m / min, which specifically includes the following steps:

[0104] Install a deviation correction system near the place where the product is to be inspected to reduce lateral vibration;

[0105] In this embodiment, the camera selects an area array camera, the model is Baumer VLXT-31M.I, the interface is 10 Gigabit Ethernet port, the pixel size is 3.45um, the resolution is 2048x1536, the minimum exposure time is 1us, and the global exposure is selected; 2 magnification non-coaxial Telecentric lens, working distance 65mm; double-headed fiber optic point light source is selected; the optical axis of the camera is parallel to the plane of the pole piece, and the width direction is parallel to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a lithium battery pole piece burr online detection method and system, and belongs to the technical field of image processing, the detection method comprises the following steps: S1, selecting and installing an acquisition device through a model selection method and a layout method, and carrying out parameter setting on the acquisition device through a parameter calculation method; s2, collecting a pole piece burr image, and calling a burr detection algorithm; s3, sending out an alarm signal or a control signal according to a detection result; and S4, judging the running state of the production line, and calling an automatic focusing algorithm. According to the invention, an area array industrial camera with extremely short exposure time, a light source with extremely high brightness and a telecentric lens with large depth of field and high magnification are adopted, a model selection method and a layout method of the camera, the lens and the light source are designed, the acquisition frame rate is exponentially improved by calculating and setting camera parameters, and high-speed online detection of pole piece burrs is realized by the burr detection algorithm based on image projection analysis with automatic focusing.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and system for online detection of burrs on lithium battery pole pieces. Background technique [0002] Electrode production is the basic process for manufacturing lithium-ion power batteries. The positive electrode is coated on both sides of copper foil, and the negative electrode is coated on both sides of aluminum foil. The positive electrode and negative electrode are separated by a separator. Battery specifications, the process of slitting rolled battery pole pieces, including metal separation, die cutting and laser separation, die cutting. The pole piece coating is composed of layered metal salt particles or layered carbon particles such as petroleum coke. The composite material has almost no plastic deformation ability. When the internal stress generated by the upper and lower disc cutters or the high temperature of the laser is greater than th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/73H04N5/232
CPCG06T7/0004G06T7/136G06T7/73H04N23/675
Inventor 骞森
Owner 南京帝感智能科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com