| 锂离子动力电池系统多尺度热安全研究 |
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| 引用本文： | 张艳岗,郭旭旭,薛文阳,张志文,梁君飞,王华.锂离子动力电池系统多尺度热安全研究[J].北京航空航天大学学报,2023,49(1):31-44. |
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| 作者姓名： | 张艳岗 郭旭旭 薛文阳 张志文 梁君飞 王华 |
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| 作者单位： | 1.中北大学 能源与动力工程学院，太原 030051 |
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| 基金项目： | 国家自然科学基金(51605447)；山西省基础研究计划(20210302123069,201901D211208)；山西省高等学校科技创新项目(2019L0605)；山西省研究生创新项目(2021Y662) |
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| 摘 要： | 锂离子动力电池系统作为电动汽车最重要的核心部件，其动力性能和安全可靠性的提升是中国电动汽车进一步规模化发展的重大需求。锂离子动力电池的热安全问题贯穿于电池系统的整个生命周期，且在单体-模组-系统不同空间尺度下的表现形式不同。针对锂离子动力电池系统多空间尺度热安全问题，分别从单体电池生热、模组温度均一性、电池系统安全可靠性3个方面归纳总结了目前动力电池热安全设计的最新进展，并对一些重要研究成果进行了着重介绍，总结了锂离子动力电池系统热安全设计亟待解决的关键问题，提出了可行的解决方案，对今后的研究方向进行了展望，旨在为电池系统动力性能和安全可靠性提升提供有益的借鉴和参考。
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| 关 键 词： | 锂离子动力电池系统 生热模型 温度均一性 热管理系统 可靠性 |
| 收稿时间： | 2021-04-02 |
Research on multi-scale thermal safety of lithium-ion power battery system |
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| Affiliation: | 1.School of Energy and Power Engineering，North University of China，Taiyuan 030051，China2.School of Chemistry，Beihang University，Beijing 100191，China |
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| Abstract: | As the most important core component of electric vehicles, the lithium-ion power battery system requires improvement in power performance, safety, and reliability for further large-scale development of electric vehicles in China. Thermal safety issues of lithium-ion power batteries may occur throughout the whole life cycle of the battery system, and manifest differently in different spatial scales of monomers, modules, and systems. To address the multi-spatial scale thermal safety problems of the lithium-ion power battery system, the latest progress of thermal safety design of power batteries is reviewed from three aspects: heat generation of a single battery, temperature uniformity of a module, and safety and reliability of a battery system. Some important research results are introduced, and the key problems to be solved in the thermal safety design of a lithium-ion power battery system are summarized. Feasible solutions to the problems are put forward, and the future research direction is suggested, providing insight into increase in power performance, safety and reliability of battery systems. |
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