王振,李保国.电池热管理系统散/加热特性研究及保温安全设计[J].包装工程,2022,43(11):174-182.
WANG Zhen,LI Bao-guo.Battery Thermal Management System Heat Dissipation/Heating Characteristics Research and Heat Preservation Safety Design[J].Packaging Engineering,2022,43(11):174-182. |
| 电池热管理系统散/加热特性研究及保温安全设计 |
| Battery Thermal Management System Heat Dissipation/Heating Characteristics Research and Heat Preservation Safety Design |
| 投稿时间：2021-07-13 |
| DOI：10.19554/j.cnki.1001-3563.2022.11.023 |
| 中文关键词: 锂离子电池 BTMS 微通道 微热管 安全 |
| 英文关键词: lithium-ion battery BTMS microchannel micro-heat pipe safety |
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| 中文摘要: |
| 目的 研究电动汽车高/低温工况下锂离子(Li–ion)电池散/加热所需时间，完善电池热管理系统(BTMS)的保温与安全设计。方法 通过瞬态仿真分析微通道耦合微热管(MC耦合UMHP)式BTMS作用Li–ion电池组散热过程的动态特性，并在该BTMS结构上增加电加热辅助设计，考虑到Li–ion电池组在超低/高温工况运行时的各种不利条件，对MC耦合UMHP式BTMS增加保温与安全设计。结果 在流速为3 m/s时，MC耦合UMHP式BTMS作用Li–ion电池组从初始温度314 K降温至目标温度303 K所需的时间仅为135 s，在Li–ion电池组初始温度为258 K时，加热时间近258 s，在各种工况下进行散/加热仿真实验中Li–ion电池组的最大温差始终小于5 K。结论 MC耦合UMHP式BTMS对Li–ion电池散/加热所需时间少，换热效果好，温度均衡性好。 |
| 英文摘要: |
| The paper aims to study the time required for the Li-ion battery to dissipate/heat under the high/low temperature conditions of electric vehicles, and improve the insulation and safety design of the battery thermal management system (BTMS). The dynamic characteristics of the heat dissipation process of the Li–ion battery cells applied by the microchannel coupled micro heat pipe (MC-UMHP) BTMS are analyzed through transient simulation, and the electric heating auxiliary design is added to the BTMS structure. Taking into account the Li–ion battery cells under various unfavorable conditions during ultra-low/high temperature operation, heat preservation and safety design are added to MC-UMHP type BTMS. The results suggest that when the flow rate is 3 m/s, the time required for the MC-UMHP type BTMS to cool the Li–ion battery cells from the initial temperature of 314 K to the target temperature of 303 K is only 135 s. When the initial temperature is 258 K, the heating time is approximately 258 s. The maximum temperature difference of the Li–ion battery cells in the dispersion/heating simulation experiment under various working conditions is always less than 5 K. The MC-UMHP type BTMS requires less time to dissipate/heat the Li–ion battery, with good heat exchange effect and good temperature uniform. |
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