Electric vehicle battery thermal management system employing porous material

A battery thermal management and porous material technology, applied in the field of electric vehicle battery thermal management system, can solve problems such as thermal runaway of battery boxes, safety accidents, etc., and achieve the effects of improving reliability, improving mass density, and alleviating huge momentum.

Inactive Publication Date: 2017-11-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under extreme conditions, especially in high-rate continuous discharge and high operating ambient temperature (>50°C), the use of air cooling may easily lead to thermal runaway of the battery box and cause safety accidents

Method used

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  • Electric vehicle battery thermal management system employing porous material
  • Electric vehicle battery thermal management system employing porous material

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Embodiment Construction

[0030] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] like figure 1 and figure 2 As shown, the present invention uses a porous material electric vehicle battery thermal management system, which includes two main parts, namely, the power battery pack battery box and the air handling system.

[0032] The air handling system is a heat pump refrigeration system. The air handling system includes an indoor unit part 1 and an outdoor unit part 4. The two parts are connected by pipes. The cooled / heated air passes through the air outlet 6 of the indoor unit through the air supply pipe 7. The air inlet 8 of the battery box is sent into the inside of the battery box 9, the battery unit 10 is cooled / heated, and then flows out of the battery box 9 through the air outlet 13 of the battery box, and then returns to the indoor unit part 1 through the air return pipe 14.

[0033] The air handling system fu...

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Abstract

The invention discloses an electric vehicle battery thermal management system employing a porous material. The electric vehicle battery thermal management system comprises a power battery pack battery box and an air processing system, wherein the power battery pack battery box comprises a battery box body and battery units, the battery units are arranged in the battery box body an in array way, the air processing system is a hot pump type refrigerating system, comprises an indoor machine part and an outdoor machine part and is used for purifying, cooling/heating circulation air, at least one porous material plate is arranged in the battery box body and is arranged along a radial direction of the battery units, opening holes are formed in the porous material plate and are larger than the sizes of end surfaces of the battery units, the battery units are inserted into the opening holes of the porous material plate, and contact parts of the battery units and the porous material plates are filled with thermal conductive plastic. By the electric vehicle battery thermal management system, a power battery pack can be enabled to run within an optimal temperature range, a huge impact force generated by accident collision of an electric vehicle can be effectively reduced, and the working efficiency, the safety and the reliability of the power battery pack are comprehensively improved.

Description

technical field [0001] The invention belongs to the technical field of battery thermal management, and in particular relates to a thermal management system of an electric vehicle battery using porous materials. Background technique [0002] In recent years, in order to cope with the increasingly serious environmental pollution and energy crisis, countries all over the world are vigorously developing electric vehicles with low energy consumption and low emissions. As the power source of electric vehicles, the power battery pack directly affects the overall performance of electric vehicles. Compared with lead-acid batteries and nickel-metal hydride batteries, lithium-ion batteries have become the main power source of electric vehicles because of their advantages such as high specific energy, high specific power, good cycle performance and low self-discharge. At the same time, in order to meet the high power requirements of electric vehicles, single cells are usually densely a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/48H01M10/613H01M10/625H01M10/6563H01M50/20
CPCH01M10/486H01M10/613H01M10/625H01M10/6563H01M50/20Y02E60/10
Inventor 金立文路昭张立玉孟祥兆余小玲杨肖虎
Owner XI AN JIAOTONG UNIV
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