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Lithium battery pack thermal management system and method with dry and wet separation

A dry and wet separation and management system technology, applied in secondary batteries, battery/fuel cell control devices, circuits, etc., can solve the problems of large safety hazards, large battery damage, low heat dissipation efficiency, etc. The effect of uniform temperature and high heat dissipation efficiency

Inactive Publication Date: 2019-08-09
赵耀华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of high safety hazards, low heat dissipation efficiency, and large damage to the battery in the prior art, the present invention proposes a dry-wet separation lithium battery pack thermal management system and method

Method used

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  • Lithium battery pack thermal management system and method with dry and wet separation
  • Lithium battery pack thermal management system and method with dry and wet separation
  • Lithium battery pack thermal management system and method with dry and wet separation

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Embodiment Construction

[0032] In order to understand the content of the present invention more clearly, the attached Figure 1-3 Describe in detail with specific embodiments.

[0033] Such as Figure 1-3 As shown, a dry-wet separation battery pack thermal management system in this embodiment includes a battery pack and a liquid-cooled plate-tube heat exchanger 2 attached to the outside of the battery pack shell 1, and the battery cells in the battery pack share It is divided into four layers, and each layer has three vertical and horizontal layers. The upper and lower surfaces of the three battery units 5 in each horizontal layer are attached to two sets of micro heat pipe arrays 6 extending in the lateral direction. The micro heat pipe array 6 is a flat heat conductor with a porous structure formed by extruding metal materials. There are a plurality of mutually disconnected micro heat pipes arranged side by side. The micro heat pipes are packaged with phase change working fluid. The micro heat p...

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Abstract

The invention relates to a lithium battery pack thermal management system and method with dry and wet separation. The system comprises a battery pack, a battery pack housing and a liquid cooling platetube heat exchanger, the surface of the battery or the battery module is attached to a micro heat pipe array, the extending portion of the micro heat pipe array is attached to the battery pack housing; the liquid cooling plate tube heat exchanger is attached to the outer surface of the battery pack housing, the liquid cooling plate tube heat exchanger is connected with an electric vehicle refrigerating system. The lithium battery pack thermal management system and method with dry and wet separation combine the micro heat pipe array with efficient heat transfer with a liquid cooling mode to arrange one or more than one liquid cooling plate tube heat exchangers arranged at the outer portion of each battery pack to effectively conduct the temperature in the battery through the further position and arrangement relation of the micro heat pipe array and the battery unit so as to avoid the too high temperature, ensure the uniform temperature of the battery and improve the heat dissipation efficiency.

Description

technical field [0001] The invention relates to a dry-wet separation battery pack thermal management method and system, belonging to the field of battery pack heat dissipation for electric vehicles. Background technique [0002] The thermal management of lithium battery packs is not only critical to battery life, but also critical to battery safety. [0003] The traditional battery pack thermal management method - air cooling technology not only cannot meet the requirements of the protection level of the lithium battery pack, but also due to the large temperature difference between the inlet and outlet of the air cooling system, resulting in a large temperature difference between the battery cell and the battery cell, which is harmful to the lithium battery. The damage is large, so it is basically useless at present. [0004] The traditional thermal management method of lithium battery packs with high protection level generally adopts the liquid cooling mode. At present, mo...

Claims

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Application Information

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IPC IPC(8): H01M10/617H01M10/625H01M10/6552H01M10/6554H01M10/6556H01M10/6567H01M10/6571B60L58/26B60L58/27
CPCB60L58/26B60L58/27H01M10/617H01M10/625H01M10/6552H01M10/6554H01M10/6556H01M10/6567H01M10/6571Y02E60/10Y02T10/70
Inventor 赵耀华徐红霞
Owner 赵耀华
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