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A battery thermal management system

A battery thermal management and battery box technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of wasting resources, increasing costs, etc., and achieve the effects of effective recycling, reducing energy consumption, and improving thermal conductivity

Active Publication Date: 2022-02-15
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Secondly, for the thermal management device of the phase change material battery, there is rarely a gaseous phase change material recovery device, which wastes resources and increases costs and environmental pollution.

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 , figure 2 with image 3 As shown, a thermal shock buffering battery thermal management system disclosed in the present invention is composed of a battery box 7 , a liquid-cooled microchannel 2 , a gas-liquid phase change material 3 , and a rectangular battery 4 . The gas-liquid phase change material 3 and the liquid cooling microchannel 2 are filled in the gap of the rectangular battery 4 .

[0023] In order to better realize the heat dissipation of the lithium battery pack, similar sandwich structures are arranged on both sides of the rectangular battery 4, and the overall method is as follows: Figure 4 shown. A sandwich structure of gas-liquid phase change material 3 and liquid-cooled microchannel 2 is arranged between adjacent rectangular batteries 4 , and the width of the gap between rectangular batteries 4 is...

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Abstract

The invention discloses a battery thermal management system for cushioning thermal shock. Gas-liquid phase change materials and liquid-cooled microchannels are interspersed in the battery gap. The heat dissipation of the system is buffered, and the heat of the battery is taken away together with the liquid-cooled microchannel. When the heat dissipation temperature of the battery is low, the gas-liquid phase change material plays the role of heat conduction and sensible heat, and finally dissipates heat through the liquid-cooled microchannel; the invention can solve the problem of The temperature management of battery packs in tight spaces can effectively reduce the risk of thermal runaway and fire of the battery pack.

Description

technical field [0001] The invention belongs to the technical field of power battery thermal management, and in particular relates to a battery thermal management system combining medium and low temperature phase change materials and liquid-cooled microchannels to buffer thermal shock. Background technique [0002] As an ideal power source in the future, lithium-ion batteries have the advantages of high specific energy, high specific rate, long life, fast charging, and no obvious memory effect. However, lithium-ion batteries have poor anti-abuse performance, and excessive temperature will shorten battery life. The rapid attenuation of the battery will also bring risks such as thermal runaway. The heat-related problems of the battery are one of the key factors that determine its performance, safety, life and cost. [0003] At present, for the thermal management of lithium batteries, phase change materials are widely used, so there are some significant problems. [0004] Firs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/647H01M10/6554H01M10/6557H01M10/6567H01M10/6568H01M10/659
CPCH01M10/613H01M10/647H01M10/6554H01M10/6557H01M10/6567H01M10/6568H01M10/659Y02E60/10
Inventor 裴波刘飞秦江卢北虎胡棋威杨栋梁王洋洋卢鑫
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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