Soft package battery external short circuit reliability detection device and method

A technology of external short-circuit and soft-pack batteries, which is applied in the direction of measuring devices, short-circuit testing, and measuring electricity. It can solve the problems that the battery cells are prone to combustion or even explosion, and it is impossible to judge the small arcing or spark generation of the battery cells, so as to reduce the test. Experimental workload, optimized cell design, and high safety and reliability effects

Inactive Publication Date: 2022-01-28
安徽利维能动力电池有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing testing methods cannot judge the tiny arcing or spark generation of the battery cells, which is an important reason why the batteries are easy to burn or even explode after being grouped together. Therefore, we propose a device and method for detecting the reliability of the external short circuit of the pouch battery to solve the above problems

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
  • Soft package battery external short circuit reliability detection device and method
  • Soft package battery external short circuit reliability detection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] see Figure 1-2 , the present invention provides a technical solution: a pouch battery external short-circuit reliability detection device, including a voltmeter 1 and a cell 2 with tabs 3 fixed at both ends, the voltmeter 1 is a highly sensitive multi-channel voltmeter And the voltage test accuracy is less than or equal to 0.1mV, the voltmeter 1 is connected to one end of a plurality of first alligator clips 4 and the second alligator clip 5, and the o...

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 soft package battery external short circuit reliability detection device and method, and the device comprises a voltmeter and a battery cell with the two ends fixedly connected with tabs respectively, the voltmeter is connected with one end of each of a plurality of first alligator clips and second alligator clips, and the other end of each of the first alligator clips and the second alligator clips is connected with the battery cell. The bottom of the battery cell is in contact connection with a plurality of supporting legs, the bottom ends of the supporting legs are fixedly connected with a base, and the top of the base is fixedly connected with a plurality of high-definition cameras in a staggered mode. By using the device and the method, arc discharge or sparking caused by short circuit of an aluminum plastic film during external short circuit of the battery cell can be rapidly and accurately judged, so that the phenomenon of battery cell combustion can be further avoided, and the situation that the reason of failure of external short circuit of the battery cell cannot be found due to the fact that an excitation point cannot be observed by naked eyes is avoided; and convenient conditions are provided for optimizing the cell design and reducing the test workload.

Description

technical field [0001] The invention relates to the technical field of battery detection, in particular to an external short-circuit reliability detection device and method for a pouch battery. Background technique [0002] Lithium-ion batteries have attracted much attention due to their high energy density, high power and long cycle life, and have become one of the mainstream energy storage devices today. They are widely used in electric vehicles, electric bicycles, energy storage, and communication backup power. People are also paying more and more attention to the safety performance of batteries. In view of the complex and changeable use environment, people have designed many abuse test methods to evaluate the normal use of lithium-ion batteries. The external short circuit test is one of the important tests. Soft-pack lithium-ion batteries are different from cylindrical and square aluminum-shell lithium-ion batteries. The latter two have protection devices that can cut o...

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): G01R31/385G01R31/52
CPCG01R31/385G01R31/52
Inventor 徐超刘朋朋蔡方平王坤张圣
Owner 安徽利维能动力电池有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap