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Lithium battery coating defect detection method, system and device and storage medium

A defect detection, lithium battery technology, applied in optical testing flaws/defects, measuring devices, material analysis by optical means, etc., can solve the problems of high recognition rate and low resource utilization rate, and achieve high recognition rate and utilization rate. low effect

Active Publication Date: 2019-04-12
GUANGZHOU SUPERSONIC AUTOMATION TECH
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  • Abstract
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Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a method for detecting coating defects of lithium batteries, which has low utilization rate of resources and is difficult to identify High rate; can accurately detect defects on the lithium battery pole piece, and accurately locate and match the defect area

Method used

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  • Lithium battery coating defect detection method, system and device and storage medium
  • Lithium battery coating defect detection method, system and device and storage medium
  • Lithium battery coating defect detection method, system and device and storage medium

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Embodiment Construction

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, on the premise of no conflict, the embodiments or technical features described below can be combined arbitrarily to form new embodiments. .

[0044] see figure 1 , is a flowchart of the method for detecting coating defects of lithium batteries provided by the first embodiment of the present invention. The lithium battery coating defect detection method of this embodiment includes the steps:

[0045] S1: Collect the pole piece image of the lithium battery.

[0046] This step is used to collect the image of the pole piece after coating of the lithium battery. The coating process in the formation of lithium batteries is to coat the configured positive electrode slurry and negative electrode slurry on the substrate such as aluminum foil or copper foil. After the lithium battery pole piece of the spacer process is coated, th...

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Abstract

The invention discloses a lithium battery coating defect detection method, comprising the following steps: images of a pole piece of a lithium battery are collected; a target image is obtained by splicing the images of the pole piece, and the battery cycle of the lithium battery pole piece is determined; within the range of a battery cycle, a defect region is obtained by extracting defects from the target image; and the eigenvalue of the defect region is calculated, the defect region is classified and matched according to the eigenvalue, and the type of the defect region is determined. The method has low resource utilization rate and high recognition rate. The defect on the pole piece of a lithium battery can be accurately detected, and the defect region can be accurately located and matched.

Description

technical field [0001] The invention relates to the technical field of machine vision, in particular to a method, system, equipment and storage medium for detecting coating defects of lithium batteries. Background technique [0002] Lithium-ion battery is a high-capacity, long-life and environmentally friendly battery, which mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. Lithium-ion batteries have many advantages, including high voltage, large specific energy, long cycle life, good safety performance, small self-discharge, and fast charging. Therefore, the application fields of lithium-ion batteries are constantly expanding, and they have been widely used in energy storage, electric vehicles, portable electronic products and other fields. [0003] The electrode pole piece is the basis of the lithium-ion power battery, which directly determines the electrochemical performance and safety of the battery. Lithiu...

Claims

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8851G01N2021/8854G01N2021/8887Y02E60/10
Inventor 赵兵锁张俊峰梁土伟
Owner GUANGZHOU SUPERSONIC AUTOMATION TECH
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