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Battery module with flat heat pipes and cooling method

A flat heat pipe, battery module technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as reducing battery cycle life, affecting battery consistency and balance, and battery cell expansion.

Active Publication Date: 2016-06-22
上海康赛制冷设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the high-current charging and discharging process, due to the heat generation of the battery and the accumulation of heat in the battery pack, the consistency of the battery will be reduced, and the battery core will expand, which will affect the consistency and balance of each battery after the battery is grouped. thereby reducing the cycle life of the battery

Method used

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  • Battery module with flat heat pipes and cooling method
  • Battery module with flat heat pipes and cooling method
  • Battery module with flat heat pipes and cooling method

Examples

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Embodiment Construction

[0023] A battery module with a flat heat pipe provided in an embodiment of the present invention will be further described in detail below with reference to the drawings and specific examples.

[0024] Please also refer to Figure 1 to Figure 7 , the present invention provides a battery module 1 with a flat heat pipe, comprising: a tab fixing device 10, a packing belt 30, a bottom fixing device 40, a plurality of battery cells 20 and a plurality of flat heat pipes 50; every two battery cells 20 A flat heat pipe 50 is arranged between them; the packing belt 30 is hooped in the notch 102 of the tab fixing device and the notch 402 of the bottom fixing device, and then the edge 201 of the battery cell 20 is pressed and fixed in the through groove 101 of the tab fixing device and The bottom fixing device is in the through groove 401.

[0025] The battery cell 20 is a soft-pack lithium-ion battery. Each battery cell 20 is a lithium-ion battery that can be independently charged and...

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Abstract

The invention discloses a battery module with flat heat pipes and a cooling method. The battery module comprises a shell and a plurality of single batteries, wherein the plurality of single batteries are arranged in the shell in a lamination way, the battery module also comprises a tab fixing device, a packing belt, a bottom fixing device and a plurality of flat heat pipes, one of the flat heat pipes is arranged between each two single batteries, the packing belt is hooped in a gap of the tab fixing device and a gap of the bottom fixing device, and sealing edges of the single batteries are fixed in a through groove of the tab fixing device and a through groove of the bottom fixing device. According to the method, a low-boiling point liquid is heated to be vaporized, is condensed on the side walls inside fins and flows to a phase change generation region, liquid supply required for liquid evaporation is met, thus, complete circulation is formed, the battery is continuously cooled, and the soaking performance the cooling performance of a battery pack are further improved.

Description

technical field [0001] The invention relates to the technical field of large-capacity lithium-ion batteries, in particular to a battery module with a flat heat pipe and a heat dissipation method. Background technique [0002] With the advancement of science and technology and the enhancement of human environmental protection awareness, the green energy industry at home and abroad has entered a stage of rapid development. The electric vehicle industry, communication industry and some special industries have begun to widely use high-energy and high-power lithium ions. The battery is used as the power source, and puts forward high requirements on the weight ratio, volume ratio and safety of the power module. For a long time, people have been conducting various studies on the safety of batteries, the packaging structure of battery packs, and production efficiency. [0003] The lithium-ion battery pack power supply is composed of multiple lithium-ion battery cells combined and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/0525H01M10/6552
CPCH01M10/0525H01M10/613H01M10/6552Y02E60/10
Inventor 蔡李花李娩娩方海峰何晓崐吴群彪高进可张洋李昱
Owner 上海康赛制冷设备有限公司
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