城市轨道交通车辆钛酸锂电池安全防护技术可行性研究
丁朝奉张凤丽赵正虎
Feasibility Study on Safety Protection Technology of Lithium Titanate Battery for Urban Rail Transit Vehicles
DING ChaofengZHANG FengliZHAO Zhenghu
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作者信息:中车南京浦镇车辆有限公司， 210031， 南京
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Affiliation:CRRC Nanjing Puzhen Co., Ltd., 210031, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.05.032
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中图分类号/CLCN:TM912.1∶U231
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栏目/Col:研究报告
摘要:
［目的］锂离子电池的短路、热失控及由此引起的爆燃等安全问题已成为城市轨道交通车辆应用发展的瓶颈之一。因此，城市轨道交通行业急切需要对钛酸锂电池的安全防护技术进行研究，以确保城市轨道交通的正常运营与安全。［方法］通过电池单体设计的选择、模组的设计与验证，以及电池管理系统的设计、充放电管理、故障管理、系统测试与验证、电池箱体仿真设计、试验验证及其他物理防护措施实施等方面进行分析，验证了钛酸锂电池在城市轨道交通上运用的安全防护可行性。［结果及结论］通过不同防护措施的实施，可将钛酸锂电池的短路、热失控及爆燃等的安全风险降至可控范围，从而确保钛酸锂电池作为备用及临时动力电源系统在城市轨道交通车辆上安全运用。
Abstracts:
［Objective］ Safety issues such as short circuit, thermal runaway, and resulting explosion of lithium-ion batteries have become one of the bottlenecks for the application and development in urban rail transit vehicles. Therefore, the urban rail transit industry urgently needs to research the safety protection technology for lithium titanate batteries to ensure the normal operation and safety of urban rail transit. ［Method］ Through analysis of battery cell design selection, module design and verification, battery management system design, charge and discharge management, fault management, system testing and verification, battery pack simulation design, experimental verification, and implementation of other physical protection measures, the feasibility of safety protection of lithium titanate batteries in urban rail transit is validated. ［Result & Conclusion］ By implementing various protective measures, the safety risks of short circuit, thermal runaway, and explosions of lithium titanate batteries can be reduced to a controllable range, thereby ensuring the safe application of lithium titanate batteries as a backup and temporary power supply system in urban rail transit vehicles.
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