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Thermal runaway automatic cooling system for lithium ion battery module of new energy vehicle and realization method thereof

A technology for lithium-ion batteries and new energy vehicles, applied in battery temperature control, batteries, secondary batteries, etc., can solve the problems of charging piles and car spontaneous combustion, and achieve the effect of simple operation and good cooling effect

Pending Publication Date: 2019-01-04
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, accidents caused by thermal runaway of lithium-ion battery modules are not uncommon, and serious cases may even lead to spontaneous combustion of charging piles and vehicles

Method used

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  • Thermal runaway automatic cooling system for lithium ion battery module of new energy vehicle and realization method thereof
  • Thermal runaway automatic cooling system for lithium ion battery module of new energy vehicle and realization method thereof

Examples

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Embodiment 1

[0038] Refer to attached figure 2 , during use, now assume that the lithium-ion battery module of the new energy vehicle performs a discharge reaction, when it is abnormal, the temperature rises abnormally, and the cooling method includes the following steps:

[0039] (1) During the charging process, the temperature of the lithium-ion battery module of the new energy vehicle rises. The copper tube surrounding the lithium-ion battery module, because the thermal conductivity of the copper tube is relatively good, the water in the copper tube absorbs the temperature from the battery;

[0040] (2) As the temperature of the lithium-ion battery module continues to rise, the temperature sensor monitors that the temperature of the positive pole of the battery reaches 50°C, and the single-chip microcomputer compares the signal with the program set in the single-chip microcomputer through the internal circuit, and then sends instructions to the single-chip microcomputer to control throu...

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PUM

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Abstract

The invention provides a lithium-ion battery module thermal runaway automatic cool and cooling system for a new energy vehicle and its realization method and relates to a battery cooling and cooling system, in particular to a lithium-ion battery module thermal runaway automatic cooling and cooling system for new energy vehicles. Includes a liquid circulation cooling part, a temperature monitoringpart, a control part and an auxiliary device part; A temperature monitor section and a liquid circulation cooling section are connected with that control section, respectively. The invention has the advantages of automatic control, simple operation, good cooling effect and the like. When the temperature of the lithium battery rises, the temperature can be judged, and the lithium-ion battery moduleof the new energy vehicle is cooled by three stages, so as to avoid the lithium-ion battery module from losing heat control and forming domino effect due to the continuous rise of the temperature ofthe lithium-ion battery module itself, thus causing huge casualties and property losses of the lithium-ion battery module.

Description

technical field [0001] The invention relates to a thermal runaway automatic cooling system for a lithium-ion battery module of a new energy vehicle and an implementation method thereof, which relate to a battery cooling system, in particular to an automatic cooling system for thermal runaway of a lithium-ion battery module of a new energy vehicle. Background technique [0002] With the development of the new energy industry, lithium-ion batteries are widely used in daily electronic equipment, and are gradually moving toward scale and integration. However, frequent accidents of lithium-ion battery modules in new energy vehicles still restrict the development of the industry. New energy vehicles use lithium-ion battery packs. If there is a fire and explosion, the damage and loss caused by it are much more serious than that of lithium-ion battery cells. This is mainly due to the spread of thermal runaway of lithium-ion batteries, which will produce a domino effect. [0003] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/63H01M10/633H01M10/6556H01M10/6567H01M10/6568H01M10/48
CPCH01M10/486H01M10/613H01M10/625H01M10/63H01M10/633H01M10/6556H01M10/6567H01M10/6568H01M2220/20Y02E60/10
Inventor 王志荣杨赟陈施晨周钰鑫
Owner NANJING UNIV OF TECH
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