Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lithium battery safety valve opening pressure finite element modeling method

A technology of safety valve opening and modeling method, which is applied in the field of finite element modeling to analyze the opening pressure of lithium battery safety valve, and achieves the effect of reducing the cost of trial production and experiment and filling the technical gap.

Active Publication Date: 2018-06-01
CHINA AVIATION LITHIUM BATTERY RES INST CO LTD +1
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no publicly reported literature in the lithium battery industry to introduce how to use simulation methods to predict the opening pressure of existing structures, and it is impossible to reveal the deformation and failure mechanisms of structures from the perspective of theory and simulation.

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 safety valve opening pressure finite element modeling method
  • Lithium battery safety valve opening pressure finite element modeling method
  • Lithium battery safety valve opening pressure finite element modeling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045]The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0046] Such as Figure 1-Figure 7 As shown, a finite element modeling method for the opening pressure of a lithium battery safety valve of the present invention comprises the following steps:

[0047] Step 1: Creation and delivery of parametric geometric models, including,

[0048] Step 1.1: Determine the characteristic parameters of the product, the characteristic parameters include thickness, length, outer diameter, inner diameter and notch depth, use each characteristic parameter as input, and use CATIA three-dimensional modeling software to establish a parameterized lithium battery safety valve Three-dimensional solid model; among them, the notch depth is a key parameter th...

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 present invention provides a lithium battery safety valve opening pressure finite element modeling method, belonging to the technical field of lithium battery safety valve performance analysis. The lithium battery safety valve opening pressure finite element modeling method is especially used for simulation analysis of intensity of a lithium battery safety valve, and the intensity is taken asan index to identify a condition of opening event generation of the safety valve to replace an experiment so as to rapidly determine the opening pressure of the safety valve. The lithium battery safety valve opening pressure finite element modeling method can help structure designers with rapid pre-determination and response for rationality of the model design at an initial phase of the design, asimulation result is not influenced by consistence of actual produced products, and the deviation of the actual indexes of the products and design values can be identified to perform manage and control of key feature indexes of the lithium battery safety valve.

Description

technical field [0001] The invention relates to a finite element modeling method for analyzing the opening pressure of a lithium battery safety valve. Background technique [0002] The safety valve is a battery pressure relief device with a notch structure on the structure, which is a structure that induces deformation. When the internal pressure of the battery is out of control and abnormally increases to a certain extent, the safety valve will explode to release the pressure, so as to prevent explosion accidents caused by continuous pressurization of the battery. At present, there is no publicly reported literature in the lithium battery industry to introduce how to use simulation methods to predict the cracking pressure of existing structures, and it is impossible to reveal the deformation and failure mechanisms of structures from the perspective of theory and simulation. Contents of the invention [0003] The technical problem to be solved by the present invention is:...

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): G06T17/20G06F17/50
CPCG06T17/20G06F30/23
Inventor 张炜李有明孙楷航马丽王翔李靖李振
Owner CHINA AVIATION LITHIUM BATTERY RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com