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本研究从电池包、电池模组和电芯单体三个层级,系统性验证了铝巴连接片的过流能力与热安全风险的关联性。研究证实,连接片是电池包热管理的关键环节,其过流能力不足导致的持续热源问题,不仅形成BMS的监测盲区,还超出水冷系统的补偿能力,显著增加热安全风险。合理的铝巴可有效抑制局部温升。说明了散热系统与过流能力的协同优化对提升热管理效能具有决定性作用。研究揭示了过流能力与热安全防护之间的强关联性,为电池包热设计的优化提供了理论依据和实验验证基础。
Abstract:This study investigates the relationship between busbar design and thermal safety risks, conducting systematic testing and validation at three hierarchical levels: battery pack, module, and cell. The research confirms that the busbar is a critical factor in battery pack thermal management. Insufficient current-carrying busbar capacity leads to persistent thermal sources, creating monitoring blind spots in the BMS and exceeding the compensation capability of the liquid cooling system, thereby significantly increasing thermal safety risks. A well-designed busbar can effectively suppress localized temperature rise, highlighting the decisive role of synergistic optimization between the cooling system and over-current in enhancing thermal management efficiency. The study reveals a strong correlation between over-current design and thermal safety protection, providing a theoretical foundation and experimental validation for optimizing battery pack thermal design.
[1] 廖厚旭.新能源汽车锂电池寿命影响因素及延长策略探究[J].汽车电器,2026(2):20-22.
[2] 李锋.新能源汽车动力电池过充电分析与安全管理研究[J].时代汽车,2026(2):94-96.
[3] 唐静娴.新能源汽车动力电池过充电分析与安全管理研究[J].汽车与驾驶维修,2025(4):41-43,47.
[4] 李菲,王旭巍,李兆杰,等.基于n-RC模型的锂离子电池开路电压算法[J].电池,2025,55(3):485-490.
[5] LEE J,LEE S.Impact of busbar-induced joule heating on battery temperature rise in electric vehicle batteries[J].International Journal of Automotive Technology,2026,27(1):285-294.
[6] 袁婷婷.基于模型预测控制的电池充电安全性能优化策略[D].上海:东华大学,2025.
[7] 时天禄.内短路诱发锂离子电池热失控行为机理及故障诊断方法研究[D].兰州:兰州理工大学,2025.
[8] 李永奇.振动对锂离子电池的性能影响分析研究[D].贵阳:贵州民族大学,2025.
[9] 李丹.挤压条件下锂离子电池力-热-电及衰减特性研究[D].东营:中国石油大学(华东),2022.
[10] 李金鹏.循环温度对车用锂离子电池衰退老化的影响研究[D].长春:吉林大学,2025.
[11] 刘孟军.热损伤积累对圆柱形锂离子电池机械滥用安全性的影响[D].长春:吉林大学,2024.
[12] 江庆,游元杰,梁中喜,等.连接方式对锂离子电池性能测试的影响[J].时代汽车,2025(24):132-134.
[13] 杨振印,康赛赛,何飞,等.隔膜对锂离子电池短路的影响[J].电池,2025,55(3):503-507.
[14] 杨凯,杨晓光,王文伟,等.锂离子电池电化学-热-力多物理场耦合建模综述[J].电源技术,2025,49(5):887-897.
[15] 周远翔,魏振强,袁新齐,等.锂离子电池枝晶内短路引起的电热效应研究[J].电气工程学报,2025,20(5):273-282.
[16] 应龙,肖商龙,李通,等.锂离子电池机械滥用复合层模型的构建与验证[J].电源技术,2026,50(3):470-478.
[17] 毛路,赵文元,王越,等.锂离子电池快充-均衡双层优化控制方法[J].电工技术学报,2025,40(19):6395-6406.
[18] LI J X,LI P Z,WANG M,et al.Study on the temperature rise characteristics of aging lithium-ion batteries under different cooling methods[J].Applied Thermal Engineering,2024,240:122235.
[19] LI Y Z,CHEN L X,HE Y H,et al.Rapid temperature prediction of parallel-connected generator circuit breaker busbar based on multi-input physical information neural network[J].International Journal of Thermal Sciences,2025,218:110142.
[20] CHI A,GAO Y,JIANG Q S,et al.Overheat-to-thermal-runaway characteristics and fuzzy risk assessment of automotive lithium-ion cells with different cathode materials,capacities,packaging,and states of charge[J].Journal of Power Sources,2025,659:238470.
[21] MALEKI H,HOWARD J N.Internal short circuit in Li-ion cells[J].Journal of Power Sources,2009,191(2):568-574.
[22] KUMAR N,PAMARTHI V V,MOFFAT J,et al.In-depth evaluation of laser welding of thick busbar to 21700 Li-ion cell terminal for electric supercar vehicle battery pack[J].Journal of Materials Research and Technology,2024,33:3058-3067.
基本信息:
中图分类号:TM912
引用信息:
[1]邓杰,梁锐,高毓轩,等.锂离子电池铝巴连接片的过流能力与热安全风险研究[J].电池工业().
2026-09-23
2026-09-23
2026-09-23