Energy Storage Science and Technology ›› 2024, Vol. 13 ›› Issue (11): 3898-3905.doi: 10.19799/j.cnki.2095-4239.2024.0446

• Energy Storage System and Engineering • Previous Articles     Next Articles

Simulation study on fire suppression in lithium-ion battery energy storage systems

Dongxing YU1,2,3(), Huang LI4(), Mingshuai HUO1, Zhixin LI1, Qiang LI5   

  1. 1.Tianjin Fire Research Institute of MEM, Tianjin 300382, China
    2.Key Laboratory of Fire Protection Technology for Industry and Public Building, Ministry of Emergency Management
    3.Tianjin Key Laboratory of Fire Safety Technology, Tianjin 300381, China
    4.State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, Anhui, China
    5.Anhui Kedun Xinneng Security Technology Co. , Ltd. , Hefei 231602, Anhui, China
  • Received:2024-05-21 Revised:2024-06-15 Online:2024-11-28 Published:2024-11-27
  • Contact: Huang LI E-mail:yudongxing@tfri.com.cn;li1125@ustc.edu.cn

Abstract:

Due to the high risks and costs associated with fire and explosion tests, simulated investigations of fire characteristics and suppression performance in energy storage systems are crucial. This study establishes a full-scale simulation model for a 20-foot energy storage container using Fire Dynamics Simulator software. The research analyzes the fire propagation process within the battery system and examines the diffusion patterns of typical gases, including CO2, H2, and CO. Results indicate that the concentrations of H2, and CO at the center of the fire source can exceed 1000 ppm(1 ppm=10-4%), whereas concentrations at the container's corners range from 24 to 183 ppm. Additionally, the temperature and distribution of characteristic gases stabilize within 10 seconds, exhibiting a distinct stratification phenomenon. The water spray system demonstrates a significant cooling effect, rapidly reducing temperatures from 791 ℃ to below 330 ℃. However, the use of water spray can lead to incomplete combustion of the ignited battery box, resulting in an increased concentration of combustible gases in localized areas of the energy storage system. This study aims to provide a simulation-based approach for the safety design and fire prevention strategies of lithium-ion battery energy storage systems.

Key words: energy storage system, lithium-ion battery, fire propagation, fire dynamics simulator, water spray

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