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

Method, device and equipment for inhibiting thermal runaway and fire of lithium ion battery and storage medium

A lithium-ion battery and thermal runaway technology, which is applied in fire rescue, secondary batteries, circuits, etc., can solve the problems of increasing the fire risk of lithium-ion batteries, and achieve the effect of avoiding large-scale fires and measurement errors

Active Publication Date: 2020-07-10
应急管理部天津消防研究所
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective control and extinguishing technology for lithium-ion battery fires, and in the field of new energy vehicles and energy storage where lithium-ion batteries are used in a large number, a large number of lithium-ion battery cells are usually placed in a closed box. Undoubtedly greatly increased the risk of lithium-ion battery fire

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, device and equipment for inhibiting thermal runaway and fire of lithium ion battery and storage medium
  • Method, device and equipment for inhibiting thermal runaway and fire of lithium ion battery and storage medium
  • Method, device and equipment for inhibiting thermal runaway and fire of lithium ion battery and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] figure 1 It is a schematic flowchart of a method for suppressing thermal runaway fires of lithium-ion batteries in Embodiment 1 of the present invention. This embodiment is applicable to the situation of suppressing fires caused by thermal runaway of lithium-ion batteries. To execute, and can be integrated in the lithium-ion battery management system, specifically including the following steps:

[0067] S110, acquiring environmental parameters detected by the sensors disposed inside the battery box.

[0068] In this embodiment, a plurality of lithium ion battery cells may be arranged in the lithium ion battery box. A barrier material is arranged between the lithium-ion battery cells. The fire suppression device and control device are installed outside the lithium-ion battery box, the fire suppression device is connected to the lithium-ion battery box through pipelines, and the inhibitor is transported to the inside of the lithium-ion battery box through pipelines.

...

Embodiment 2

[0081] figure 2 It is a schematic flow chart of the method for suppressing the thermal runaway fire of a lithium-ion battery provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above embodiments. In this embodiment, the environmental parameters are optimized to: gas composition and concentration, and the values ​​of the environmental parameters and reference environmental parameters exceed the set thresholds. When starting the fire suppression device to deliver the inhibitor to the battery box, the specific optimization is as follows: when the gas composition and corresponding concentration value exceeds the gas concentration threshold, the change value of the gas composition and the corresponding concentration value exceeds the gas concentration change threshold, the temperature exceeds the temperature threshold, and the temperature changes When the value exceeds the temperature change threshold, the fire suppression device is ...

Embodiment 3

[0090] image 3 It is a schematic flowchart of a method for suppressing a thermal runaway fire of a lithium-ion battery provided in Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above embodiments. In this embodiment, the environment parameter is optimized as: voltage, the reference environment parameter value is optimized as: voltage change rate, and the When the parameter and the reference environment parameter value exceed the set threshold, the fire suppression device is activated to deliver the inhibitor to the battery box. The specific optimization is: when the voltage exceeds the voltage threshold, the voltage change value exceeds the voltage change value threshold, the temperature exceeds the temperature threshold, and the temperature When the value exceeds the temperature change threshold, the fire suppression device is activated to deliver inhibitor to the battery box.

[0091] Correspondingly, the method for suppressing ther...

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 embodiment of the invention discloses a method, device and equipment for inhibiting a thermal runaway and fire of a lithium ion battery and a storage medium. The method comprises the steps that environmental parameters detected by a sensor arranged in a battery box are acquired; an environmental reference parameter value is calculated according to the environmental parameters; and when the environmental parameters and the reference environmental parameter value exceed set threshold values, a fire inhibition device is started to convey an inhibitor into the battery box. Whether the fire occurs or not can be accurately judged by utilizing the various environmental parameters, and misjudgments caused by various measurement errors generated by the sensor are effectively avoided. The thermal runaway battery can be effectively inhibited in the early stage of the fire, and the large-range fire of the lithium ion battery is avoided.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a method, device and equipment for suppressing thermal runaway fires of lithium-ion batteries. Background technique [0002] With the rapid development of various clean energy sources such as wind energy and solar energy, lithium-ion batteries, as high-energy and effective energy storage and conversion devices, have great advantages in specific energy, specific power, cycle life, [0003] Environmental protection and other aspects have shown obvious advantages. It is the most important energy storage method and is widely used in many fields such as mobile electronic devices, new energy vehicles, and grid energy storage. [0004] However, the lithium-ion battery itself is an energetic substance, which has the potential danger of fire or explosion. If it is used improperly or due to quality problems of the product itself, it is very easy to cause a fire. The battery fire i...

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
IPC IPC(8): A62C3/16A62C37/00H01M10/48
CPCA62C3/16A62C37/00H01M10/48Y02E60/10
Inventor 董海斌张少禹刘连喜李毅羡学磊伊程毅盛彦锋赵青松于东兴
Owner 应急管理部天津消防研究所
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