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

Method for detecting ultrasonic welding quality

A technology of ultrasonic welding and detection method, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, and manufacturing of electrolyte batteries. It can solve problems such as low efficiency and inaccurate test results, and achieve accurate results and detection solutions. Ease of implementation and simple detection scheme

Active Publication Date: 2020-09-11
WANXIANG 123 CO LTD
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problems of inaccurate and low efficiency of general test results, and provides a detection method of ultrasonic welding quality

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
  • Method for detecting ultrasonic welding quality
  • Method for detecting ultrasonic welding quality
  • Method for detecting ultrasonic welding quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] Embodiment: the detection method of a kind of ultrasonic welding quality of this embodiment, comprises the following steps:

[0055] The first step is to sample the cells produced. Sampling is to classify the batteries produced by different production lines first. The batteries produced by the production lines that have been used for less than 3 years and have not experienced failures are designated as Class A samples. The batteries that have been used for more than 3 years and less than 6 years without failures The battery produced by the production line that has been used for more than 6 years without any failure is designated as the type C sample, and the battery produced by the production line that has failed and has been repaired is designated as the type D sample. And the total number of samples is set at 200 pieces. Among them, 50 pieces will be selected for each of categories A, B, C and D. Classify the samples for accurate feedback in the future. The total n...

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 method for detecting ultrasonic welding quality. The problems of inaccurate general test results and low efficiency are solved. The method comprises the following steps: S1,classifying and sampling batteries produced by different production lines; S2, conducting plectrum processing on the extracted battery, and the welding quality is detected; and S3, feeding back a detection result of the welding quality to the corresponding production line. The method has the advantages that the detection scheme is simple and easy to implement, computer calculation and analysis areadopted, convenience and quickness are achieved, results are accurate, errors are small, a feedback mechanism is arranged, and the product percent of pass is effectively increased.

Description

technical field [0001] The invention relates to the field of lithium battery detection, in particular to a detection method for ultrasonic welding quality. Background technique [0002] Ultrasonic welding is often used in the production and manufacture of lithium-ion batteries, but when the number of pole pieces of the battery is too many, the difficulty of welding will increase sharply due to the increase in the thickness of the welded parts. At the same time, due to the instability of ultrasonic welding itself, the joint quality is more unstable when there are too many layers. Therefore, a method that can accurately reflect the welding quality is particularly important. In the prior art, the detection of welding quality has problems such as high efficiency, low cost, inaccuracy, and inability to detect false welding. The tab of the lithium battery cell is welded to the bus bar. During the welding process, the elastic sheet is inserted between the joint surface of the tab...

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): G01N3/08H01M10/058
CPCG01N3/08H01M10/058G01N2203/0003G01N2203/0017G01N2203/0067G01N2203/0641G01N2203/0676Y02E60/10Y02P70/50
Inventor 陶洪亮苏文俊高标何春峰游欣华商殷兴
Owner WANXIANG 123 CO LTD