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Battery thermal management device, battery module and battery thermal management method

A battery thermal management and heat pipe technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as hazards, and achieve the effects of improving thermal performance and thermal safety, increasing temperature difference, and accelerating heat conduction.

Active Publication Date: 2021-06-11
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the thermal runaway event of the battery in the local area is out of control, it will expand to the battery in the surrounding area, resulting in a "domino" effect, which will eventually cause the thermal runaway event to spread in the battery system and cause great harm

Method used

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  • Battery thermal management device, battery module and battery thermal management method
  • Battery thermal management device, battery module and battery thermal management method
  • Battery thermal management device, battery module and battery thermal management method

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Embodiment Construction

[0029] Embodiments of the present invention will be described in detail below, and examples of the embodiments are illustrated in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The following is exemplary, and is intended to be used herein, not to be construed as limiting the invention.

[0030] In the description of the present invention, several meanings are one or more, and multiple meanings are more than two or more, greater than, less than, more than, etc., is not included, or more, and below, etc. If there is a description to the first, the second is only for distinguishing the technical features, and cannot be understood as an indication or implies the reproduction of the technical features indicated by the indicated technical features or implicitly indicated the technical features indicated. relationship.

[0031] In the description of the present invention, unless otherw...

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Abstract

The invention discloses a battery heat management device, a battery module and a battery heat management method. The battery heat management device comprises a containing body, a first temperature phase change body, a second temperature phase change body, a heat pipe and a heat exchange assembly; the containing body is provided with a containing cavity, and the first temperature phase change body is arranged in the containing cavity and forms at least one heat insulation cavity and a plurality of battery monomer mounting cavities; the heat insulation cavity is located among the battery monomer mounting cavities, the phase change temperature of the second temperature phase change body is higher than that of the first temperature phase change body, the second temperature phase change body is arranged in the heat insulation cavity and divides the accommodating cavity into a plurality of heat management areas, and the heat pipe is in heat exchange connection with the first temperature phase change body and the second temperature phase change body. The heat exchange assembly is in heat exchange connection with the first temperature phase change body. The thermal management of conventional heat dissipation, low-temperature heating and thermal runaway diffusion inhibition of the battery can be realized, and the thermal performance and thermal safety of the battery are improved.

Description

Technical field [0001] The present invention relates to the field of battery technology, and more particularly to a battery thermal management device, a battery module, and a battery thermal management method. Background technique [0002] In existing lithium-ion battery systems, both the working mechanisms and properties of the battery exhibit high dependence on temperature, maintaining the lithium ion battery in a suitable temperature range to maintain optimal operating performance. The lithium-ion battery produces a certain amount of heat during the operation, so it is necessary to discover the heat to avoid heat accumulation and affect the battery voltage, charge and discharge efficiency, and cycle life. In addition, the lithium-ion battery will increase the internal resistance under low temperature conditions and affect the discharge capacity. Heat out-of-control event occurs in extreme conditions or improper use. If the thermal out of control of the local area battery is lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/6552H01M10/6556H01M10/6568H01M10/658H01M10/659
CPCH01M10/613H01M10/615H01M10/6552H01M10/6556H01M10/6568H01M10/658H01M10/659Y02E60/10
Inventor 马瑞鑫吴伟雄綦晓庄师强
Owner JINAN UNIVERSITY
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