A method for optimizing the layout of heat conduction plates in battery modules

A battery module and optimization method technology, applied in the direction of secondary batteries, electrochemical generators, circuits, etc., can solve the problem of increasing the heat dissipation capacity of the battery module, and achieve the effect of light weight

Active Publication Date: 2019-01-04
XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention discloses a method for optimizing the heat conduction arrangement of battery modules. In the case of complexity, rationally arrange the plates, reduce the weight of the power battery module, and increase the heat dissipation capacity of the battery module

Method used

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  • A method for optimizing the layout of heat conduction plates in battery modules
  • A method for optimizing the layout of heat conduction plates in battery modules

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Embodiment 1

[0025] Such as figure 1 , figure 2 As shown, a method for optimizing the arrangement of heat conducting plates of a battery module, the method for optimizing the arrangement includes the following specific steps:

[0026] Step 1: The battery module consists of 10 battery cells arranged in a 2*5 arrangement. A certain gap is left between the battery cells, and the gap gradually increases from the outside of the module to the center of the module.

[0027] Step 2: Based on the current size and usage time of the battery under operating conditions, build a thermal simulation with the gap between the battery cells and the gap between the battery cells and the module box in step 1 as the changing parameters Model; 10 gap size schemes, according to the thermal simulation calculation results, the average temperature of each battery cell is T_ avg , calculate 10 cells T_ avg According to the calculation results, further adjust the gap size setting of 10 schemes, increase the gap si...

Embodiment 2

[0032] Such as figure 1 , figure 2 As shown, a method for optimizing the arrangement of heat conducting plates of a battery module, the method for optimizing the arrangement includes the following specific steps:

[0033] Step 1: The battery module consists of 10 battery cells arranged in a 2*5 arrangement. A certain gap is left between the battery cells, and the gap gradually increases from the outside of the module to the center of the module.

[0034]Step 2: Based on the current size and usage time of the battery under operating conditions, build a thermal simulation with the gap between the battery cells and the gap between the battery cells and the module box in step 1 as the changing parameters model; there are 10 gap size schemes, and according to the thermal simulation calculation results, the average temperature of each single battery is T_ avg , calculate 10 cells T_ avg According to the calculation results, further adjust the gap size setting of 10 schemes, and ...

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Abstract

The invention relates to an optimization method for thermal conductive plate arrangement of a battery module. The method comprises the following specific steps: S1, forming the battery module by N single batteries, wherein certain gaps are reserved among the single batteries, and the gaps from the outer side of the battery module to the center of the module are gradually increased; S2, establishing a thermal simulation model by taking current size and using time of a battery using working condition as a ground and the gaps among the single batteries in the S1 and the gaps between the single batteries and a module box body as changing parameters; and S3, separately calculating longitudinal and transverse heat conductivities of the single batteries. According to the method provided by the invention, not only can panels be reasonably arranged under the circumference of not increasing the process complexity to alleviate the weight of the power battery module, but also can increase the heat dissipating ability of the battery module.

Description

technical field [0001] The invention relates to the application field of new energy vehicle power battery technology, and more specifically to a method for optimizing the heat conduction arrangement of a battery module. Background technique [0002] In recent years, the rapid development of the automobile industry has brought huge environmental pollution problems to countries all over the world. New energy vehicles that use power batteries as driving energy have become research and development hotspots in countries all over the world. The power batteries of new energy vehicles mostly use lithium-ion batteries. However, lithium-ion batteries are often accompanied by the release of heat during the charging and discharging process. Due to the slow heat dissipation, a large amount of heat accumulates, resulting in a significant increase in the temperature of the lithium-ion battery. The high temperature may easily damage the consistency and cycle life of the battery module. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/617H01M10/625H01M10/633H01M10/651H01M10/6555
CPCH01M10/613H01M10/617H01M10/625H01M10/633H01M10/651H01M10/6555Y02E60/10
Inventor 任永欢张燕梅余子群宋光吉
Owner XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
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