主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2022, Vol. 41 ›› Issue (8): 1093-1097.

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细水雾对磷酸铁锂储能电池模组性能影响研究

郭东亮1，郭鹏宇2，孙 磊1，肖 鹏1   

  1. （1.国网江苏省电力有限公司电力科学研究院，江苏 南京 211103； 2.国网江苏省电力有限公司，江苏 南京 210024）
  • 出版日期:2022-08-15 发布日期:2022-08-15
  • 作者简介:作者简介：郭东亮（1989-），男，河北邯郸人，国网江苏省电力有限公司电力科学研究院工程师，硕士，主要从事储能锂离子电池热安全评估相关研究，江苏省南京市帕威尔路1号，211103。
  • 基金资助:
    ：国家自然科学基金青年基金项目（61904116）；江苏省自然科学基金面上项目（BK20211029）

Research on the influence of water mist on the performance of lithium iron phosphate energy storage battery modules

GUO Dong-liang1, GUO Peng-yu2, SUN Lei1,XIAO Peng1   

  1. (1. State Grid Jiangsu Electric Power Co., Ltd. Research Institute, Jiangsu Nanjing 211103, China; 2. State Grid Jiangsu Electric Power Co., Ltd.， Jiangsu Nanjing 210024, China)
  • Online:2022-08-15 Published:2022-08-15

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摘要： 细水雾可有效扑灭储能电站磷酸铁锂电池热失控火灾并抑制其复燃，但在灭火过程中细水雾喷放对处于非热失控状态的正常电池的影响尚未明确，一定程度上限制了其在储能电池消防安全领域的推广应用。以正常326 Ah磷酸铁锂储能电池模组为试验对象，系统研究了细水雾持续喷放对其充放电性能、安全性能及数据监测模块（BMU）功能的影响。结果表明：在15 min的细水雾持续喷放及后续观察期间，3组电池模组均未出现外壳形变、未产生可燃气体、未出现温度升高及电火花等异常现象，且各单体电压平稳，BMU数据采集功能正常，试验前后电池模组充放电性能未出现明显波动，验证了细水雾在磷酸铁锂储能电池模组火灾扑救过程中的可靠性。

关键词: 储能电站, 磷酸铁锂电池, 可靠性, 细水雾

Abstract: Fine water mist can effectively extinguish the fire in the lithium iron phosphate battery for energy storage power stations and inhibit battery re-ignition. However, the impact of water mist spray on neighboring normal batteries in a non-thermal runaway state during the fire extinguishing process has not been clear, which partly limits its popularization and application in the field of fire safety in the energy storage battery. This paper takes a 326 Ah normal LFP battery module as the test object to systematically studies the effect of continuous spraying of water mist on its safety and electric performances and data monitoring module (BMU) function. The experimental results show that the battery modules do not have the phenomenon of bulging, gas production, temperature rising, burning, electric spark, voltage fluctuate wildly, etc, and the BMU data collection function is normal during the 15min of continuous spraying of water mist and the subsequent observation period. In addition, there are no significant fluctuations in the charge-discharge performance of the battery packs before and after the water spray test. The results of this study verify the reliability of the water mist in the fire extinguishing process of the lithium iron phosphate energy storage battery modules.

Key words: energy storage power station, lithium iron phosphate battery, reliability, water mist