The Structure Optimization of Lithium-ion Battery Pack Based on Fluid-solid Conjugate Thermodynamic Analysis

被引：15

作者：

Ye, Min ^{[1
]}

Xu, Yining ^{[1
]}

Huangfu, Yangfang ^{[1
]}

机构：

[1] Changan Univ, Natl Engn Lab Highway Maintenance Equipment, Xian 710064, Shaanxi, Peoples R China

来源：

CLEANER ENERGY FOR CLEANER CITIES | 2018年 / 152卷

关键词：

lithium-ion battery; fluid-solid conjugate heat transfer; MSMD model; temperature field; optimal design; THERMAL MANAGEMENT;

D O I：

10.1016/j.egypro.2018.09.224

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To effectively improve the discharging efficiency and the cycle period, the thermodynamic analysis and the heat dissipation structure optimization are conducted on the lithium-iron battery pack. The internal resistance characteristics of the battery are experimented, and the change of internal resistance at different discharge rate and ambient temperature is measured. The threedimensional thermal effect model of the battery is established, and the simulation analysis of thermoelectric coupling is carried out by using MSMD model in FLUENT. The simulation results are compared with the experimental results to verify the validity of the model. By the Ansys Workbench software, the three dimensional model are established based on the conjugate thermal transfer phenomenon. Based on the fluid-solid conjugate heat transfer mechanism, the influence of the airflow channel spacing and air inlet angle on the temperature distribution of the battery pack is analyzed, thus optimizing the heat dissipation structure. By studying the effect of the air flow rate and its temperature on the temperature distribution of the battery pack, the optimized heat dissipation structure can achieve the best performance. Copyright (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：643 / 648

页数：6

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